Challenges in Attaining and Maintaining Good Nutrition
7 Contact Hours
Released: 2/21/20
Expire: 2/21/23
Author: Adrianne E. Avillion, D.Ed., RN
Adrianne E. Avillion, D.Ed, RN, is an accomplished nursing professional development specialist and health care author. She earned her doctoral degree in adult education and her MS in nursing from Penn State University and a BSN from Bloomsburg University. Dr. Avillion has held a variety of nursing positions as a staff nurse in critical care and physical medicine and rehabilitation settings with emphasis on neurological and mental health nursing as well as a number of leadership roles in nursing professional development. She has published extensively and is a frequent presenter at conferences and conventions devoted to the specialty of continuing education and nursing professional development. Dr. Avillion owns and is the CEO of Strategic Nursing Professional Development, a business that specializes in continuing education for health care professionals and consulting services in nursing professional development. Her publications include the following: The Path to Stress-Free Nursing Professional Development: 50 No-Nonsense Solutions to Everyday Challenges and Nursing Professional Development: A Practical Guide for Evidence-Based Education.
Reviewer: Shellie Hill DNP, FNP-BC
Shellie Hill DNP, FNP-BC is an Assistant Professor in the MSN-NP program at Saint Louis University. Here she teaches the clinical courses for the Family Nurse Practitioner students, and she teaches health assessment and health promotion to MSN students. Dr. Hill has been a practicing Family Nurse Practitioner for 18 years. Most of her practice has been in primary care, but she also has experience urgent care and cardiology. Her current practice is in corporate health. She is passionate about dermatology and has studied it extensively. Her doctorate study was titled “Skin Cancer Screenings in Primary Care.” Dr. Hill attends national nurse practitioner conferences regularly. She has also presented at several local and regional conferences on dermatological problems. She also teaches suturing workshops.
Purpose Statement: Obesity, a problem that affects more than 90 million adults in the United States, is associated with the development of cardiac disease, stroke, type 2 diabetes, and certain cancers. The purpose of this course is to provide current information about nutrition best practices as well as recommendations related to weight reduction and select eating disorders.
Learning Objectives:
- Discuss the current state of eating patterns in the United States.
- Explain the impact of obesity on health and wellness.
- Describe common eating disorders.
- Discuss the recommended guidelines for a healthy diet.
- Describe the components of specific nutrients.
- Differentiate among the components of various types of diets.
- Identify nutritional needs for specific populations.
- Discuss nursing interventions regarding nutritional needs for healthcare consumers.
- Explain intent to change practice regarding nutrition.
How to receive credit
- Read the entire course online or in print which requires a 7-hour commitment of time.
- Complete the self-assessment quiz questions which are at the end of the course or integrated throughout the course. These questions are NOT GRADED. The correct answer is shown after you answer the question. If the incorrect answer is selected, the rationale for the correct answer is provided. These questions help to affirm what you have learned from the course.
- Depending on your state requirements you will then be asked to complete either:
- An affirmation that you have completed the educational activity
- A mandatory test (a passing score of 70 percent is required). Test questions link content to learning objectives as a method to enhance individualized learning and material retention.
- If requested, provide required personal information and payment information.
- Complete the mandatory Course Evaluation
- Print your Certificate of Completion.
CE Broker Reporting.
Elite, provider # 50-4007, reports course completion results within 1 business day to CE Broker. If you are licensed in Arkansas, District of Columbia, Florida, Georgia, New Mexico, South Carolina, or West Virginia, your successful completion results will be automatically reported for you.
Accreditations and Approvals:
Elite is accredited as a provider of continuing education by the American Nurses Credentialing Center’s Commission on Accreditation.
Individual State Nursing Approvals
In addition to states that accept ANCC, Elite is an approved provider of continuing education in nursing by: Alabama, Provider #ABNP1418 (valid through March 1, 2021); California Board of Registered Nursing, Provider #CEP17480 (valid through January 31, 2022); California Board of Vocational Nursing and Psychiatric Technicians (LVN Provider # V15058, PT Provider #15020) valid through December 31, 2021; District of Columbia Board of Nursing, Provider # 50-4007; Florida Board of Nursing, Provider #50-4007; Georgia Board of Nursing, Provider #50-4007; and Kentucky Board of Nursing, Provider #7-0076 (valid through December 31, 2021). This CE program satisfies the Massachusetts Board’s regulatory requirements as defined in 244 CMR5.00: Continuing Education.
Activity Director
June D. Thompson, DrPH, MSN, RN, FAEN
Lead Nurse Planner
Disclosures
Resolution of Conflict of Interest
In accordance with the ANCC Standards for Commercial Support for continuing education, Elite implemented mechanisms prior to the planning and implementation of the continuing education activity, to identify and resolve conflicts of interest for all individuals in a position to control content of the course activity.
Sponsorship/Commercial Support and Non-Endorsement
It is the policy of Elite not to accept commercial support. Furthermore, commercial interests are prohibited from distributing or providing access to this activity to learners.
Disclaimer
The information provided in this activity is for continuing education purposes only and is not meant to substitute for the independent medical judgment of a healthcare provider relative to diagnostic and treatment options of a specific patient’s medical condition ©2020: All Rights Reserved. Materials may not be reproduced without the expressed written permission or consent of Elite Professional Education, LLC. The materials presented in this course are meant to provide the consumer with general information on the topics covered. The information provided was prepared by professionals with practical knowledge of the areas covered. It is not meant to provide medical, legal, or professional advice. Elite Professional Education, LLC recommends that you consult a medical, legal, or professional services expert licensed in your state. Elite Professional Education, LLC has made all reasonable efforts to ensure that all content provided in this course is accurate and up to date at the time of printing, but does not represent or warrant that it will apply to your situation nor circumstances and assumes no liability from reliance on these materials. Quotes are collected from customer feedback surveys. The models are intended to be representative and not actual customers.
Course Verification
All individuals involved have disclosed that they have no significant financial or other conflicts of interest pertaining to this course. Likewise, and in compliance with California Assembly Bill No. 241, every reasonable effort has been made to ensure that the content in this course is balanced and unbiased.
Introduction
Nurses are in an advantageous position to provide counseling and education regarding healthy eating. Teaching healthcare consumers about nutrition is an essential component of health maintenance and illness prevention, and is within the nurse’s scope of practice. As health care moves from a model of treating illness to a model of prevention, nurses are expected to include dietary education as part of wellness promotion activities.
Obesity, a problem that affects more than 90 million adults in the United States (U.S.), is associated with the development of cardiac disease, stroke, type 2 diabetes, and certain cancers (Centers for Disease Control and Prevention [CDC], 2018a). It is, therefore, imperative that nurses incorporate nutritional education as part of routine patient/family education.
Current State of Eating Patterns in the United States
Most Americans are aware that a healthy diet should contain an abundance of fruits and vegetables and limited amounts of saturated fats, sugars, and salt. Despite the availability of accessible information, Americans continue to make poor nutritional choices. It is estimated that about 75% of the population has an eating pattern that is low in vegetables, fruits, and healthy oils. The majority of Americans exceed the dietary recommendations for added sugars, saturated fats, and sodium (Health.gov., 2015, 2016a).
The most widely advertised foods tend to be high in calories and low in nutrients, and there are fewer advertisements for healthy foods, such as fruits, vegetables, whole grains, and beans. In addition, many individuals find it difficult to make lifestyle changes, such as improving dietary habits and incorporating exercise into their regular routines. Busy work schedules often leave little time to prepare healthy meals at home. How can the healthcare community reverse this dangerous trend in nutritional intake in the U.S.?
First, a review of the history of Dietary Guidelines can help to establish a basis for nursing interventions regarding nutrition. In order to understand the current state of eating patterns in the U.S., it is important to understand how dietary recommendations have changed over the course of time.
History of Dietary Recommendations
The release of dietary recommendations is not a new phenomenon. The U.S. Department of Agriculture has been issuing dietary recommendations for over a century. Although nutritional research has grown in pace and sophistication over the years, many of the current dietary recommendations remain significantly similar to those published many years ago (Davis & Saltos, n.d.).
The first dietary recommendations were published by the U.S. Department of Agriculture (USDA) in 1894. At that time, specific vitamins and minerals had not even been discovered. These initial recommendations were written by W.O. Atwater, the first director of the Office of Experiment Stations in the U.S. Department of Agriculture. His research on nutritional needs and the composition of foods established the foundation of a guide for healthy-eating patterns (Davis & Saltos, n.d.).
The first U.S. Department of Agriculture food guide was written by Caroline Hunt, a nutritionist. Published in 1916, Food for Young Children classified food into five groups: milk and meat, cereals, vegetables and fruits, and fats and fatty foods, and sugars and sugary foods. In 1917, the next publication focused on foods for the general public. How to Select Foods was based on the same food groups as the 1916 guide. In 1921, the latest edition of the guide expanded recommendations to suggest amounts of foods to purchase every week for the average family. Modified in 1923, the guide was now written to include households that were different from the average (at that time) five-member size (Davis & Saltos, n.d.).
By the early 1930s, Dietary Guidelines were affected by the financial impact of the Great Depression. In 1933, a U.S. Department of Agriculture economist developed food plans at four cost levels to help persons with varying incomes shop for food (Davis & Saltos, n.d.).
The early 1930s saw the establishment of the U.S. Department of Agriculture Foods program. This program was developed as an outgrowth of government policies written to bolster food prices and help American farmers survive the economic devastation of the Great Depression. Farmers lost their farms while the amount of farmland increased (U.S. Department of Agriculture, n.d.).
Farmers who managed to keep their farms planted more food in an attempt to make up for poor prices, which further reduced food prices while increasing surpluses since much of the food went unsold. Millions of people in cities and rural areas lost their jobs and were unable to afford food at even low prices. Malnutrition among children became a significant, national concern (U.S. Department of Agriculture, n.d.).
In 1933, the Commodity Credit Corporation was established to provide farmers with loans and help them store nonperishable foods until prices increased. Ultimately, farmers could forfeit their crops to the federal government to repay loans. This meant that the government had to sell or distribute surplus foods to domestic and international food programs to prevent waste and spoilage (U.S. Department of Agriculture, n.d.).
Throughout the 1930s, Congress passed legislation to help support farmers and provide food distribution to those who needed it. For example, in 1935, eligible categories of recipients were established so that needy families had access to food. Eventually, it was the donations of surplus food that started the school lunch and other child-feeding programs (U.S. Department of Agriculture, n.d.).
Nursing Consideration: During World War II, food shortages and gasoline rationing that limited food transportation decreased shipments of food to schools. Legislation was enacted to provide financial help for schools and childcare centers to provide food for lunch programs (U.S. Department of Agriculture, n.d.). Nurses have an obligation to be aware of the impact of political and social changes and upheavals that interfere with nutritional intake and work to facilitate programs that support the intake of a healthy diet.
In 1941, the National Nutrition Conference for Defense published the first set of Recommended Dietary Allowances (RDAs) by the Food and Nutrition Board of the National Academy of Sciences. Specific recommendations were given for the intake of calories and nine essential nutrients: protein, iron, calcium, vitamins A and D, thiamin, riboflavin, niacin, and ascorbic acid (Davis & Saltos, n.d.).
In 1941, the National Nutrition Conference for Defense published the first set of Recommended Dietary Allowances (RDAs) by the Food and Nutrition Board of the National Academy of Sciences. Specific recommendations were given for the intake of calories and nine essential nutrients: protein, iron, calcium, vitamins A and D, thiamin, riboflavin, niacin, and ascorbic acid (Vitamin C) (Davis & Saltons, n.d.).
In 1956, a new food guide was published that recommended a minimum number of foods from the “Basic Four” food groups: milk, meat, fruits and vegetables, and grain products. This 1956 guide was extensively used throughout the next two decades (Davis & Saltron, n.d.).
By the 1970s, research showed that consuming excessive amounts of certain types of food products such as saturated fats, sugars, and sodium increased the risk of chronic diseases (e.g., heart disease and stroke). So significant was the research deemed in terms of health that, in 1977, the Senate Select Committee on Nutrition and Human Needs published Dietary Goals for the United States. This publication signaled a new direction for Dietary Guidelines. For the first time the emphasis moved from obtaining adequate nutrients to avoiding excessive intake of food products associated with chronic disease development. However, since this publication’s goals were so different from previous guidelines, the U.S. Department of Agriculture did not incorporate the goals into its own food plans and guidelines (Davis & Saltron, n.d.).
However, the growing body of research linking nutritional intake to health and wellness made a shift in focus inevitable. The following information is a summary of the new direction of Dietary Guidelines from the 1970s through the present:
- 1979: The U.S. Department of Agriculture began to address the association of fats, sugars, and sodium with chronic diseases in its publication titled This was accompanied by a new food guide, Hassle-Free Guide to a Better Diet. This new guide introduced a fifth food group: fats, sweets, and alcoholic beverages (U.S. Department of Agriculture, n.d.).
- 1980: The first edition of Nutrition and Your Health: Dietary Guidelines for Americans (issued by the U.S. Department of Agriculture and the Department of Health and Human Services) was published. This began what would be an ongoing process of writing and updating Dietary Guidelines that would eventually be published every five years. The first edition triggered some concerns among consumers, nutrition scientists, and food industry groups about the causal relationship between some of the guidelines and health (U.S. Department of Agriculture, n.d.).
- 1980–1990s: Throughout the 1980s and the 1990s, the U.S. Department of Agriculture worked on developing and publishing materials to help the general public use the Dietary Guidelines (U.S. Department of Agriculture, n.d.).
- 1992: The Food Pyramid was published. This booklet was developed to provide a graphic picture of the food guide to help consumers understand and implement good dietary guidelines. The Food Pyramid was widely used until early in the 21st century (U.S. Department of Agriculture, n.d.).
Source: U.S. Department of Agriculture/U.S. Department of Health and Human Services https://www.fns.usda.gov/mypyramid
- 2011: First Lady Michelle Obama unveiled a new graphic representation of recommended food guidelines called MyPlate, which took the place of the once iconic Food Pyramid. MyPlate is represented by a plate divided into four sections for fruit, vegetables, grains, and protein. A smaller circle sits beside the plate for dairy products. Its focus is on reminding consumers about the essentials of a healthy diet (The New York Times, 2011).
Source: https://www.choosemyplate.gov/eathealthy/WhatIsMyPlate
- 2011: The Harvard Medical School developed its own graphic representation of food guidelines called the Healthy Eating Plate, as they felt there were certain omissions in MyPlate. According to Harvard experts, MyPlate does not tell consumers that whole grains are better for health; in addition, it does not include a discussion of fats, and does not identify which proteins are healthier than others. Moreover, they concluded that MyPlate does not distinguish between potatoes and other vegetables, and seems to show a smaller portion of fruit than vegetables. Harvard experts also note that MyPlate recommends dairy at every meal and does not comment on sugary drinks or juice. Harvard’s Healthy Eating Plate promotes the choosing of whole and less refined grains, identifies healthy sources of protein, encourages an abundant variety of vegetables, and encourages the use of healthy oils and fats. It also encourages the consumption of water and other calorie-free beverages. However, MyPlate remains the government’s graphic representation of Dietary Guidelines (Harvard Health Publications Harvard Medical School, 2017; The New York Times, 2011).
For more information on the Healthy Eating Plate visit: https://www.hsph.harvard.edu/nutritionsource/healthy-eating-plate/
- 2015–2020: The eighth edition of Dietary Guidelines for Americans covers the five-year period from 2015–2020. These current guidelines focus on: (1) stressing that eating patterns have a significant impact on health and (2) that healthy-eating patterns are adaptable to incorporate many types of foods (Healthcare.gov., 2016).
Data on Current Eating Patterns
The media is flooded with information about the poor quality of the average American’s diet and the obesity epidemic. Is there any good news about the way Americans eat? Before providing the grimmer statistics, it seems appropriate to note some positive information as well.
Research indicates that there are decreases in low-quality carbohydrates (primarily added sugar) and increases in high-quality carbohydrates. A study of trends in dietary carbohydrate, protein, and fat intake among U.S. adults from 1999–2016 was conducted on 43,996 adults (Shan et al., 2019). From 1999 to 2016, U.S. adults experienced (Shan et al., 2019):
- Significant decreases in the percentage of energy intake from low-quality carbohydrates.
- Significant increases in the percentage of energy intake from high-quality carbohydrates (mainly whole grains).
- Significant increases in plant proteins (mainly whole grains and nuts), and polyunsaturated fat.
Despite the previous encouraging statistics, there is still a great deal of work to be done when it comes to healthy eating in the U.S. Research also shows that 42% of energy intake is still derived from low-quality carbohydrates, and the intake of saturated fat remains above 10% of energy (Shan et al., 2019).
According to information from the President’s Council on Sports, Fitness, and Nutrition (HHS.gov., 2017):
- The typical American diet exceeds the recommended intake in four categories: calories from solid fats and added sugars, refined grains, sodium, and saturated fat.
- In general, Americans eat less than the recommended amounts of vegetables, fruits, whole grains, dairy products, and oils.
- About 90% of Americans consume more sodium than is recommended for a healthy diet. American adults consume an average of 3,400 mg/day of sodium, which is well above federal guidelines of less than 2,300 mg daily.
- Reducing sodium consumption by 1,200 mg per day could save up to $200 billion a year in medical costs.
- Since the 1970s the number of fast food restaurants has more than doubled.
- More than 23 million Americans live in areas that are more than a mile away from a supermarket.
- Empty calories from added sugars and solid fats contribute to 40% of total daily calories for 2- to 18-year-olds.
Nursing Interventions
What impact does the history of food guidelines and current patterns of eating have on nursing interventions? What nursing interventions are important to these issues? Nurses and other healthcare professionals have an obligation to (Davis & Saltos, n.d.; Healthcare.gov, 2015)
- know the history of American Dietary Guidelines and how they indicate dietary trends.
- stay abreast of current research pertaining to current eating patterns of Americans.
- use knowledge of history and current research to counsel patients and families about healthy dietary patterns.
All answers and rationales to self assessment questions are at the end of the course.
Self-Assessment #1
Dana, a nursing student in her junior year, is working on a project about nutrition, health, and the American diet. She decides to go to the Student Union and quietly observe the eating habits of students, faculty, staff, and visitors. She saw a wide variety of food choices. Many of her fellow students chose fast food type items such as hamburgers and pizza. Some faculty and students did seem to make conscious choices about adding fruits and vegetables to their diets. Desserts are popular items among all age groups. Still, other people, in particular female students, seemed to eat very little. Dana overheard a group of these young women bragging that they only eat 500 calories a day. Many people of all ages were obviously overweight. Overeating, undereating, and good and bad nutrition choices were all observed by Dana. She wonders what steps should, and could, be taken to improve the American diet?
When Dana is presenting her findings to her classmates, she wants to impress upon them the typical diet of an average American. She tells her classmates which one of the following?
- Americans should reduce sodium consumption by 1,200 mg per day.
- Most Americans eat less than the recommended amounts of saturated fat.
- From 1999–2016, there were significant decreases in the consumption of plant proteins.
- Americans should increase the amount of refined grains that they eat.
The Impact of Obesity on Health and Wellness
Obesity Statistics
Obesity is not a problem unique to the U.S. In fact, obesity is a global epidemic and one of the most serious health problems in the world. It is estimated that 1.9 billion adults (defined as 18 years of age and older) have excess weight, of which over 660 million are obese. This means that 13% of the world’s adult population is obese. In preschool children, (defined as 0–5 years of age), about 41 million throughout the world are obese. Over 340 million children and adolescents aged five to 19 are overweight (World Health Organization [WHO], 2018).
Nursing Consideration: Even adults who are strongly motivated to improve their health and achieve/maintain optimal weight will resist making behavioral changes if they are made to feel embarrassed or ridiculed (Kelley, Sbrocco, & Sbrocco, 2016). Nurses should be especially sensitive to the manner in which they provide education and counseling regarding weight loss and any other health issues.
Some statistics related to overweight and obesity in the U.S. adult population include the following (CDC, 2018a):
- The prevalence of obesity was nearly 40% and affected about 93.3 million of U.S. adults in 2015–2016.
- Hispanics (47%) and non-Hispanic blacks (46.8%) had the highest age-adjusted prevalence of obesity, followed by non-Hispanic whites (37.9%) and non-Hispanic Asians (12.7%).
- The prevalence of obesity was 35.7% among young adults aged 20 to 39 years, 42.8% among middle-aged adults aged 40 to 59 years, and 41.0% among older adults aged 60 and older.
- Overall, men and women with college degrees had lower obesity prevalence compared with those with less education.
- Among men, obesity prevalence was lower in the lowest and highest income groups compared with the middle-income group.
- Among women, obesity prevalence was lower in the highest income group than in the middle and lowest income groups.
Some statistics related to childhood (2 to 19 years) obesity include the following (CDC, 2019a):
- The prevalence of obesity was 18.5% and affected about 13.7 million children and adolescents.
- Obesity prevalence was 13.9% among two- to five-year-olds, 18.4% among six- to 11-year-olds, and 20.6% among 12- to 19-year-olds. Childhood obesity is also more common among certain populations.
- Hispanics (25.8%) and non-Hispanic blacks (22.0%) had higher obesity prevalence than non-Hispanic whites (14.1%).
- Non-Hispanic Asians (11.0%) had lower obesity prevalence than non-Hispanic blacks and Hispanics.
- The prevalence of obesity decreased with the increasing level of education of the household head among children and adolescents aged 2–19 years.
- Obesity prevalence was 18.9% among children and adolescents aged 2–19 years in the lowest income group, 19.9% among those in the middle-income group, and 10.9% among those in the highest income group.
- Obesity prevalence was lower in the highest income group among non-Hispanic Asian and Hispanic boys.
- Obesity prevalence was lower in the highest income group among non-Hispanic white, non-Hispanic Asian, and Hispanic girls. Obesity prevalence did not differ by income among non-Hispanic black girls.
Financial Impact of Obesity
Overweight and obesity are associated with significant financial consequences. These include the following (HHS.gov., 2017):
- Obesity-related illness, including chronic disease, disability, and death, is estimated to carry an annual cost of $190.2 billion.
- Those who are obese have medical costs that are $1,429 more than those of normal weight on average (roughly 42% higher).
- The annual cost of being overweight is $524 for women and $432 for men; annual costs for being obese are even higher: $4,879 for women and $2,646 for men.
- Obesity is also a growing threat to national security. A surprising 27% of young Americans are too overweight to serve in our military. Approximately 15,000 potential recruits fail their physicals every year because they are unfit.
Obesity and Disease
Obesity-related conditions include heart disease, stroke, respiratory disease, type 2 diabetes, mental health, and certain types of cancer (CDC, 2018a). The following overview of disease and obesity is not all-inclusive. Research continues to provide evidence that obesity impacts many (if not most) diseases. Therefore, this education program provides general information about several of the most commonly recognized conditions that are significantly impacted by obesity.
Obesity and Mental Health. Research suggests that mental health disorders that may be triggered by obesity include depression, eating disorders, distorted body image, and low self-esteem (Collingwood, 2018).
EBP Alert! Research findings from some studies show that clinically significant depression is three to four times higher in severely obese persons than in similar nonobese persons (Collingwood, 2018). Nurses must be alert to signs and symptoms of depression (e.g., loss of interest in activities that were once enjoyed, isolation from family and friends, changes in sleep patterns, feelings of sadness and hopelessness, lack of energy, emotional outbursts) in obese patients and assess for the disorder.
A study conducted at the University of Texas Health Science Center in Houston consisted of data gathered from 2,123 participants. The investigators took into account factors such as social class, social support, chronic medical conditions, and life events. Analysis showed that obesity at baseline was associated with an increased risk of depression five years later. However, the reverse was not found to be true: depression did not increase the risk of future obesity (Collingwood, 2018).
The mental health impact of obesity can become evident in childhood. Children who are overweight or obese have an increased risk of experiencing significant victimization. Peer victimization has been associated with negative psychosocial and health outcomes as well. Peer victimization has been defined as overt (e.g., pushing, hitting) or relational (e.g., teasing, gossiping, excluding) types of aggression carried out by an individual or by a group of peers (Collingwood, 2016).
The following are emotional consequences of childhood obesity (Healthchildren.org., 2017):
- Social stigma: Society places great value on thinness, even extreme thinness. Research shows that children as young as six years of age may associate negative stereotypes with excess weight. They may believe that overweight or obese children are not as likable as someone who is of normal weight.
- Self-esteem and bullying at school: Children who are obese are more likely to have low self-esteem, body shame, and lack of self-confidence than thinner children. Obese or overweight children are more likely to be teased and bullied as well.
- Depression: The social stigma, low self-esteem, and bullying may lead to the development of clinical depression.
- Emotional eating: Some children who are overweight or obese may seek emotional comfort in food, eat more, and increase the number of calories ingested.
- Discrimination: Some children and adolescents may face discrimination based on their weight alone. Research suggests that they are less likely to be accepted by a prestigious university, find good jobs, date, or marry.
Cardiovascular Disease. Heart disease is the leading cause of death in the U.S. for both men and women. About 610,000 people die of heart disease every year (one in every four deaths). Coronary artery disease (CHD), which is the most common type of heart disease, kills over 370,000 people every year. About 735,000 Americans have a heart attack every year (CDC, 2017).
The healthcare community has spent many years attempting to find ways to prevent and treat heart disease. Risk factors for such disease include obesity, which has a negative impact on many of the other modifiable risk factors (Cleveland Clinic, 2019).
In fact, obesity has been found to have an impact on the following modifiable risk factors (Cleveland Clinic, 2019):
- Obesity raises blood cholesterol and triglyceride levels.
- Obesity lowers “good” HDL cholesterol. HDL cholesterol is associated with a reduced risk for heart disease.
- Obesity raises LDL cholesterol. LDL (“bad”) cholesterol is associated with an increased risk for heart disease.
- Obesity increases blood pressure, another known risk for heart disease.
- Obesity increases the risk for diabetes, which is also a risk factor for heart disease.
Nursing Consideration: Obesity is linked to a number of serious heart disease risk factors. When teaching patients and families about weight control, it is important nurses include information about the impact of obesity on the development (or worsening) of heart disease.
Stroke. Obesity increases risk factors for stroke. Many of the risk factors for stroke are the same as for heart disease, such as hypertension, diabetes, and elevated cholesterol (WebMD, 2018a). Therefore, obesity significantly increases the risk for stroke.
EBP Alert! Research indicates that losing as few as 10 pounds can lower body weight and reduce the risk of developing heart disease or stroke. Losing even more weight further reduces risk (American Heart Association, 2017). Thus, it is imperative that nurses work with their patients and families to control weight when counseling about stroke and heart disease prevention.
Diabetes. About 9.4% of the U.S. population (30.3 million people) has diabetes. Of these 30.3 million, 23.1 million are diagnosed, and 7.2 million are undiagnosed (CDC, 2018b).
Being overweight or obese significantly increases the risk of developing type 2 diabetes. Obesity is thought to account for 80% to 85% of the risk of developing type 2 diabetes (Diabetes.co.uk, 2019).
Obesity is associated with an increase for the following types of cancers (and possibly others as well) (National Cancer Institute, n.d.):
- breast (postmenopausal),
- colon and rectum,
- endometrial,
- esophagus,
- gallbladder,
- gastric,
- kidney,
- liver,
- meningioma,
- multiple myeloma,
- ovarian,
- pancreatic, and
Why does obesity increase the risk for some cancers? While there is no definitive answer to this question, several theories have been proposed, including the following (National Cancer Institute, n.d.):
- Fat tissues produce excess amounts of estrogens, high levels of which damage DNA and are associated with breast, endometrial, and ovarian cancers.
- Obese people have increased blood levels of insulin (insulin resistance), which is associated with the development of colon, kidney, prostate, and endometrial cancers.
- Fat cells produce adipokines, hormones that may stimulate or inhibit cell growth.
- Fat cells may have direct and indirect effects on tumor growth.
- People who are obese often have chronic low level or “subacute” inflammation, which has been associated with an increased risk for cancer.
Research continues regarding the link between obesity and cancer. At this time, however, it is important that healthcare consumers and health care providers become aware of the increased risk for certain cancers among obese patients.
Gallbladder Disease. Obesity is also linked to gallbladder disease. Gallbladder disease and gallstones are more common among people who are overweight. Paradoxically, rapid weight loss or loss of a large amount of weight may increase the likelihood of gallstones. Losing about one pound a week is less likely to cause gallstones (WebMD, 2018a).
Gout. The prevalence of gout has now reached epidemic proportions, and researchers say obesity is to blame. Obesity, BMI, and visceral fat have a linear correlation with the increase of serum uric acid and can influence gout development. Weight reduction and a decrease in the consumption of high-calorie foods can alleviate gout symptoms, and may prevent its development (Galanis, 2018).
Obstructive Sleep Apnea. The most common cause of sleep apnea in adults is obesity, which is associated with an excess amount of soft tissue of the mouth and the throat. As adults sleep, the muscles of the throat and tongue are more relaxed and soft tissue blocks the airway (WebMD, 2018b).
Patients who have obstructive sleep apnea and gain 10% of their body weight are six times more likely to have disease progression. A 10% weight loss, however, correlates with a 20% improvement in the severity of the disease (Obesity Medicine Association, 2019).
Respiratory Disease. Obesity adversely affects the function of the lungs. Obesity can lead to abnormalities in ventilator mechanics, muscle function, ventilator control, pulmonary gas exchange, and cardiac performance, all of which have an adverse impact on the lungs (Dixon & Peters, 2018; Mafort, Rufino, Costa, & Lopes, 2016).
Here are examples of some respiratory diseases and conditions that are linked to obesity (Dixon & Peters, 2018; Mafort, Rufino, Costa, & Lopes, 2016).
- Asthma: Asthma can be more difficult to control in obese patients because of increased airway inflammation, decreased response to medications, and the impact of conditions that often co-exist with obesity, such as obstructive sleep apnea and gastroesophageal reflux disease (GERD).
- Chronic Obstructive Pulmonary Disease (COPD): COPD includes emphysema and chronic bronchitis. Obesity severely and negatively impacts patients experiencing chronic lung diseases. Research shows that “weight loss is the best health strategy for obese patients with COPD.”
- Obstructive Sleep Apnea (OSA): Although obstructive sleep apnea has already been discussed, it is worth mentioning again in context of the respiratory system. Characterized by abnormalities of the upper airway and facial structures, obstructive sleep apnea can be life-threatening. Weight loss is associated with a decreased risk for this condition as well as a decrease in its severity in patients already diagnosed with the problem.
Pain. Managing pain in patients who are obese can be a challenge. Obesity is a risk factor for pain. In obese people, general and specific musculoskeletal pain is common. Excessive weight increases mechanical stress to the joints and tissues of the body, leading to physical limitations, and ultimately, bodily pain (Zdziarski, 2015).
Exercise is generally recommended as a weight-loss strategy. But it is hard to exercise when exercise causes or exacerbates pain. Health care providers may consult with physical therapists to help obese patients exercise safely, comfortably, and with positive outcomes (Zdziarski, 2015).
Nursing Consideration: Pain medication dosage is influenced by the patient’s weight. Nurses must be aware how weight impacts the effects of analgesics and how to counsel patients about their use (Comerford & Durkin, 2020).
Pregnancy and obesity. Obesity during pregnancy can have significant negative impact on the health of both mother and baby. Pregnant women who are obese face an increased risk of various types of pregnancy complications, including the following (Mayo Clinic, 2018a):
- Birth Defects: Research findings suggest that obesity during pregnancy slightly increases the risk of having an infant who is born with a birth defect.
- Chronic Conditions: Infants born to obese women are at greater risk for developing heart disease, diabetes, or other chronic conditions than those born to women of normal weight.
- Emergency C-Section: Obesity increases the risk of emergency C-sections. Obesity also increases the risk of C-section complications such as infection.
- Gestational Diabetes: Obese women are more likely to develop gestational diabetes than those who are of normal weight.
- Infection: Obesity increases the risk of urinary tract infections as well as the development of post-partum infections, whether the baby is delivered vaginally or via C-section.
- Labor Complications: The need for labor induction is more common in obese women compared to those of normal weight. Obesity can also interfere with the effectiveness of certain types of analgesia, such as an epidural block.
- Macrosomia: The risk of delivering an infant with macrosomia (an infant who is significantly larger than average) is higher in women who are obese.
- Miscarriage: The risk of miscarriage is higher in women who are obese.
- Overdue pregnancy: It is more likely that pregnancy will continue beyond the expected due date in women who are obese.
- Preeclampsia: Women who are obese are at greater risk for developing preeclampsia, which is characterized by hypertension and signs and symptoms of damage to other organs, often the kidneys.
Nursing Consideration: The preceding diseases and conditions (although not all-inclusive) are those that are currently linked to obesity by scientific research findings. However, ongoing research continues to produce evidence that obesity affects all body systems and contributes to negative impacts on most aspects of health (Mayo Clinic, 2019a); National Cancer Institute, 2019). It is essential that nurses monitor the findings of research related to obesity and update their knowledge and skills to work to help healthcare consumers achieve optimal weight.
Nursing Interventions. Nurses have an obligation to be aware of how obesity impacts health and wellness. Many of the nursing interventions related to the impact of obesity on health involve education, including the following (American Heart Association, 2019a; WebMD, 2018a):
- Incorporating height and weight measurement as part of the physical assessment.
- Teaching patients and families how obesity impacts the body’s vital organs.
- Teaching patients and families recommendations for a healthy diet.
- Reinforcing exercise guidelines per health care provider recommendations.
- Teaching patients and families how to implement treatment regimens for chronic conditions as prescribed by their health care providers.
It is critically important for nurses to be able to provide patient/family education in an objective and supportive manner. In order to do this, nurses must adhere to the following principles of adult education (Avillion, 2015; O’Neil, 2019):
- Adults need to know that what they are learning has a practical purpose. In other words, they need a “reason” to learn. In the case of weight loss, patients and families need to learn about the practical, observable benefits of weight loss.
- Adults bring a wealth of life experiences to every learning situation. These experiences include how they earn a living, function as part of a family, develop interpersonal relationships, guide and teach others, and how they learn. Experiences should be acknowledged and used by the nurse and other educators to help patients acquire knowledge and use that knowledge to improve their states of health and wellness.
- Adults are self-directed learners. They are responsible for their own learning. It is the nurse’s responsibility to provide education in terms that the patients and families can comprehend and in an objective and supportive manner. However, the responsibility for learning remains with the adult learners. They must be willing to learn and to use what is learned to improve their health status.
- Adults are interested in acquiring knowledge that can be used to improve their daily lives. Adults want to know that devoting time and effort to learning and taking action based on learning (such as losing weight) is going to improve their lives.
A critical component of patient/family education is assessing whether or not the patients and families actually acquired knowledge necessary to improve their health status. Such assessment is performed by establishing measurable learning objectives and to determine whether or not they have been achieved (American Heart Association, 2019a; WebMD, 2018a). For example, when teaching about weight loss, learning objectives might include that patients/families will be able to do the following:
- Describe the components of a healthy diet as described by the recommended Dietary Guidelines.
- Give examples of a healthy breakfast, lunch, and dinner that comply with recommended Dietary Guidelines.
- Demonstrate a weight loss of 12 pounds within a period of six weeks.
These examples show that objectives must include a measurable verb that requires patients/families to actively demonstrate learning. Measuring objectives such as these allow the nurse to determine if learning has actually taken place
Finally, nurses must be sure to make learning objectives realistic. For example, expecting a weight loss of 20 pounds in 3–4 weeks is not realistic. Expecting someone who has eaten red meat five times a week to suddenly eat red meat twice a month may be overwhelming. Nurses must work with patients and families to set realistic goals in a manner that is devoid of judgment.
Self-Assessment #2
Steven is the nurse manager of a large outpatient clinic. As part of the clinic’s health initiative, he is planning a series of community education programs on nutrition and healthy eating. Steven researches statistics regarding obesity and the impact of obesity on health and wellness. He wants to be able to explain just how devastating the consequences of obesity can be. But more than that, Steven wants to be able to offer encouragement and practical suggestions for achieving and maintaining an appropriate weight. He knows that being judgmental or critical can have a negative impact on patients’ and on families’ desire to learn and their commitment to weight loss.
Sharon should include which of the following pieces of information in her presentation?
- People who want to lose weight should set a goal of five pounds per week.
- In order to reduce symptoms of obstructive sleep apnea people should lose 20% of their body weight.
- People who are obese should be counseled about their increased risk for breast cancer.
- The prevalence of obesity is greatest in families whose head of household has graduated from college.
Eating Disorders
Not all problems related to nutrition are as obvious as obesity. Being thin is often, especially by society’s standards, determined to be not only aesthetically pleasing but a sign of good health as well. However, that is not always the case. The following common eating disorders significantly impact the nutritional status of patients.
Anorexia Nervosa
Anorexia nervosa, commonly referred to as anorexia, is an eating disorder defined as “restriction of energy intake relative to requirements, leading to a significantly low body weight in the context of age, sex, developmental trajectory, and physical health” (American Psychological Association, 2013, p.338).
Anorexia nervosa is characterized by an abnormally low body weight, an extreme, intense fear of gaining weight, and a distorted perception of weight. Persons who have anorexia highly value their ability to control their weight, shape, and food intake. They go to extremes to lose weight that significantly impacts their health and interferes with their lives (Mayo Clinic, 2018b).
Anorexia nervosa is a serious disease that can be lethal. As people reach states of near starvation, all body systems are affected, fluid and electrolyte imbalances occur, and considerable stress is placed on the cardiac system (American Psychological Association, 2013; Mayo Clinic, 2018b).
Some central features of anorexia nervosa include the following (American Psychological Association, 2013; Mayo Clinic, 2018b):
- A distorted body image. Despite an obviously gaunt, emaciated appearance, the clients still perceive themselves to be fat and unattractive. Even though family, friends, teachers, and/or co-workers try to convince clients otherwise, they firmly believe that they must continue to lose weight. They have an unshakeable belief that they are fat and see themselves as such no matter what evidence to the contrary is presented to them.
- An extreme, irrational fear of gaining weight. This fear makes clients go to extremes to lose weight and to avoid gaining weight. Such extremes include literally starving themselves and, possibly, exercising to the point of exhaustion.
Nursing Consideration: Thin does not equal healthy. When assessing nutritional status nurses need to carefully evaluate all patients for healthy nutritional intake and intervene appropriately.
Treatment generally initially involves correction of life-threatening complications, such as fluid and electrolyte imbalances, cardiac abnormalities (e.g., arrhythmias), and psychotherapy. Treatment requires a team approach that includes physicians, mental health professionals, nurses, and dieticians. It is imperative that persons affected by anorexia nervosa have ongoing therapy and nutritional education to achieve and maintain recovery (Mayo Clinic, 2018c).
Psychotherapy is as important to recovery as the intake of fluids and food. Family therapy is the only evidence-based treatment for teenagers with anorexia. Family therapy may be helpful for all members of the family, as well as for the client. Issues that may be evident among family members include conflict, difficulty handling emotions, unclear boundaries, and controlling behaviors. Therapy is not a short-term process and may take years of work (American Psychological Association, 2013; Collingwood, 2018; Mayo Clinic, 2018c).
Cognitive behavioral therapy (CBT) is another form of psychotherapy used as a treatment intervention for clients with anorexia. Many clients use their control of their weight as a means of gaining control over their lives. Clients are taught appropriate problem solving and coping skills and taught to recognize that the behaviors associated with anorexia nervosa are not only inappropriate but can be life-threatening. They are also taught to improve self-esteem, assertiveness, life satisfaction, and interpersonal communication (American Psychological Association, 2013; Collingwood, 2018; Mayo Clinic, 2018c).
Bulimia Nervosa
Bulimia nervosa, commonly referred to as bulimia, is characterized by repeated episodes of binge-eating, which is defined as eating, in a specific period of time, an amount of food that is “definitely larger than most individuals would eat in a similar period of time under similar circumstances” (American Psychological Association, 2013, p. 345). Binge-eating is followed by purging in order to prevent weight gain. Examples of purging behaviors include self-induced vomiting, excessive use of laxatives and/or diuretics, and excessive exercise. Persons suffering from bulimia nervosa feel a significant loss of control over these binging and purging behaviors (Psychological Association, 2013; Collingwood, 2018; Mayo Clinic, 2018d).
Nursing Consideration: Bulimia nervosa and anorexia nervosa can occur at the same time (American Psychological Association, 2013). When nurses are assessing clients for eating disorders, it is important that they be evaluated for both of these disorders. Not all healthcare professionals know that bulimia nervosa and anorexia nervosa can co-exist. It is important to help educate colleagues, as well as clients and families, about the possibility of this simultaneous occurrence.
A factor that differentiates bulimia nervosa from anorexia nervosa is the fact that clients who have bulimia nervosa usually maintain a normal weight, while some affected persons are slightly overweight. However, like people with anorexia nervosa, bulimic clients are desperate to lose weight and are very unhappy with their body size and shape (American Psychological Association, 2013; Mayo Clinic, 2018d).
Bulimia nervosa can lead to significant fluid and electrolyte imbalances, cardiac problems, and alterations in homeostasis (American Psychological Association, 2013; Mayo Clinic, 2018d).
Research indicates that the most effective treatment for bulimia nervosa is cognitive behavioral therapy (CBT). This is an outpatient treatment intervention and requires a detailed strategy to guide treatment. Research indicates the need for highly detailed, manual-guided treatments of 18 to 20 sessions over a period of five to six months. CBT should be conducted by a therapist who is an expert in CBT and who has experience treating persons with bulimia nervosa (Mayo Clinic, 2018e; Videbeck, 2017).
The goal of CBT is to change the client’s cognition (thinking) and behaviors. Emphasis is on helping persons suffering from the disorder to identify unhealthy, negative beliefs, thoughts, and behaviors, and replace them with healthy, positive ones. Therapy is designed to stop the client’s focus on food and to interrupt the cycle of dieting, binging, and purging (Mayo Clinic, 2018e; Videbeck, 2017).
Antidepressants such as selective serotonin reuptake inhibitors (SSRIs) may be prescribed to treat depression and even if depression has not been diagnosed. Findings from research indicate that antidepressants were more effective than placebos in reducing the occurrence of binge-eating. These drugs also improved mood and reduced fixation on body shape and weight. Most people with bulimia nervosa recover. However, periods of binging and purging may come and go throughout the person’s life, depending on life circumstances such as periods of extreme stress (Mayo Clinic, 2018e; Videbeck, 2017).
Binge-Eating Disorder
Binge-eating disorder, also referred to by some health care providers as compulsive overeating, is a newly recognized eating disorder. It is characterized by the following (American Psychological Association, 2013; Mayo Clinic, 2018f):
- As a serious mental illness.
- By uncontrollable eating, in a discrete period of time, an amount of food that is larger than what most people would eat in a similar period of time under similar circumstances.
- As similar to the binging that occurs in bulimia nervosa but without the accompanying inappropriate behaviors to rid the body of excess calories (purging).
- As a way affected persons use to cope with depression, stress, or anxiety.
Nursing Consideration: Two of three people in the United States who have binge-eating disorder are obese (WebMD, 2019a). Thus, binge-eating can contribute to the already significant problem of obesity in the United States.
Binge-eating disorder has only recently been recognized as a well-defined disorder (American Psychiatric Association, 2013). In the United States, it is estimated that about 5.6 million women and 3.1 million men have the disorder (WebMD, 2019a).
People who are obese are at greater risk for developing binge-eating disorder, but those who are of normal weight can also have the disorder. About two of every three people in the United States who have the disorder are obese (WebMD, 2019a).
Binge-eating disorder can lead to the same health hazards as obesity and requires significant treatment interventions, including psychotherapy and medication (WebMD, 2019a). Psychotherapy can be conducted in individual and/or group therapy sessions. Therapy may also include family members as indicated (Videbeck, 2017).
Cognitive behavioral therapy (CBT) is generally recommended as a treatment initiative for persons with eating disorders. Cognitive therapy concentrates on immediate processing of thoughts and feelings. Emotions of sadness, depression, anxiety, and anger are reactions to the environment in which the person lives. Some facets of CBT, as they relate to binge-eating disorder and other eating disorders, include the following initiatives (Videbeck, 20017):
- Identification of issues that trigger binge-eating episodes. Examples of such issues are negative feelings about one’s body, work, school, or family-related stressors, or co-existing conditions such as depression (Mayo Clinic, 2018f; Videbeck, 2017; WebMD, 2019a).
- Learning coping strategies to deal with negative feelings and triggering stressors (Videbeck, 2017; WebMD, 2019a).
- Learning ways to regain a sense of control over one’s life, including binge-eating behaviors (Mayo Clinic, 2018g; Videbeck, 2017; WebMD, 2019a).
Interpersonal psychotherapy concentrates on the individual’s current relationships with other people, including family, friends, and co-workers. The goal of interpersonal psychotherapy is to improve interpersonal skills, meaning how one relates to others. This type of therapy may help to reduce binging that is triggered by poor communication skills, unhealthy patterns of interaction, and poor interpersonal relationships (Mayo Clinic, 2018g).
Dialectical behavior therapy focuses on techniques to help increase stress tolerance. People learn to improve relationships and regulate emotions. This may help to decrease binge-eating episodes since triggering factors are often negative emotions and unhealthy relationships (Mayo Clinic, 2018g).
Antidepressants such as selective serotonin reuptake inhibitors (SSRIs) and tricyclic antidepressants (TCAs) may be prescribed. These kinds of drugs may help to reduce feelings of depression and negative thought patterns (Mayo Clinic, 2018g; Videbeck, 2017; WebMD, 2019a).
Nursing Interventions
When health care professionals discuss nutritional problems, they may first think of the problems of those who are overweight and obese. However, the descriptions of the preceding eating disorders show that obesity is far from the only problem related to poor nutritional intake.
Nurses must be careful not to equate thinness with good dietary habits. They must carefully measure height, weight, and BMI. They must ask patients and their families about dietary intake and food preferences and dislikes. Nurses must also assess mental health since obesity and eating disorders can be accompanied by mental health disorders.
Self-Assessment #3
Melanie is a popular high school junior who is the captain of the school’s prestigious cheerleading squad. She prides herself on her appearance and her leadership role among her classmates. However, a new student has recently joined the squad. She is pretty and very thin and soon becomes quite popular. Melanie overhears her telling some friends, “Melanie would be so much better at cheering if she would just lose a few pounds. She’s holding back the whole squad just because she can’t control her appetite!” Melanie vows she is not going to lose her leadership position and goes on a strict diet. Her friends and family initially praise her for her weight loss. Melanie vows to become the thinnest person on the cheerleading squad. She eats nothing but a few raw vegetables and is obsessed with getting thinner. Melanie is becoming dangerously thin and shows signs of developing anorexia nervosa.
- Melanie has been diagnosed with anorexia nervosa. Treatment initiatives should include
- antipsychotic medications.
- short-term CBT.
- electroconvulsive therapy (ECT).
- family therapy.
Self-Assessment #4
Dominique is a well-to-do investment banker. At 33 years of age, she is a partner in her investment firm, the wife of a prominent businessman, and the mother of two young children. She is also very attractive and has a slim figure that complements her designer clothes. Dominique is the envy of almost everyone who knows her. Her weight is within the normal range for her height and weight. However, Dominique is, in fact, far from healthy. She suffers from bulimia nervosa. Dominique eats enormous quantities of food in private and immediately takes laxatives and/or induces vomiting so that she will not gain weight. This dangerous cycle of binging and purging is increasing at an alarming rate.
- When assessing for bulimia nervosa, the nurse anticipates that the patient will be
- overweight.
- having feelings of control over their eating habits.
- desperate to lose weight.
- violent.
Recommended Dietary Guidelines
Dietary Guidelines from Health.gov
The 2015–2020 Dietary Guidelines (8th ed.) were written to provide Americans with information they need to make healthy food choices (Health.gov., 2016a). Dietary principles that are part of these most recent guidelines include the following (Health.gov., 2015; 2016a; 2016b):
- Americans should follow a healthy-eating pattern across their lifespan.
- Eating patterns have a significant impact on health.
- Healthy-eating patterns are adaptable.
- Healthy eating should focus on variety, nutrient density, and amounts of food eaten.
- Eating patterns should stay within appropriate caloric intake for age, sex, and activity level; they should meet nutritional needs, and be achievable and maintainable in the long term.
- Healthy-eating patterns include nutrient-dense forms of the following:
- A variety of vegetables – dark green, red, and orange in color, including legumes (beans and peas) and other starchy vegetables.
- Fruits, especially whole fruits.
- Fat-free or low-fat dairy, including milk, yogurt, cheese, and fortified soy beverages.
- A variety of protein foods, including seafood, lean meats and poultry, eggs, legumes (beans and peas), soy products, and nuts and seeds.
- Oils, including those from plants (e.g., canola, corn, olive, peanut, safflower, soybean, and sunflower) and oils that are naturally present in foods (nuts, seeds, seafood, olives, and avocados).
- Note that the preceding foods are nutrient dense only if they are prepared with little or no added solid fats, sugars, refined starches, and sodium.
- Calories from added sugars and saturated fats should be limited, and sodium intake should be reduced.
- Added sugars should be limited to less than 10% of total daily calorie intake.
- Saturated and trans fats should be limited to less than 10% of total daily calories by replacing them with unsaturated fats and limit trans fats to as low as possible.
- Sodium intake should be limited to less than 2,300 mg daily (for adults and children 14 years and older).
EBP Alert! Research shows that most Americans get 50% more sodium than recommended. Sodium is linked with hypertension and heart disease (Health.gov., 2015). Nurses must emphasize the importance of limited sodium intake to appropriate levels when counseling patients and families.
- Alcohol intake should be limited to no more than one drink daily for women and no more than two for men.
- Americans should shift to healthier food and beverage choices. Examples include a shift from the following:
- Full-fat cheese or whole milk to low-fat cheese and milk.
- White bread to whole-wheat bread.
- Fatty cuts of meat to seafood or beans.
- Butter to olive or canola oil.
- Soft drinks to water.
- Potato chips to unsalted nuts.
- Eating patterns represent the totality of all foods and beverages consumed.
- Nutritional needs should be met primarily from foods.
- Healthy-eating patterns are adaptable.
Healthy physical activity patterns are essential components of all healthy-eating patterns. Only 20% of adults meet the Physical Activity Guidelines for aerobic and muscle-strengthening activity (Health.gov., 2015). These Guidelines state the following (Health.gov., 2015; 2016a):
- Regular physical activity is one of the most important things individuals can do to improve his or her health.
- Adults need at least 150 minutes of moderate intensity physical activity per week and should perform muscle-strengthening exercises on two or more days each week.
- Young people in the age range of 6–17 years old need at least 60 minutes of physical activity per day, including aerobic, muscle-strengthening, and bone-strengthening activities.
- Strong evidence shows that regular physical activity helps people maintain a healthy weight, prevent excessive weight gain, and lose weight when combined with a healthy- eating pattern lower in calories.
- Strong evidence shows that regular physical activity lowers the risk of early death, coronary heart disease, stroke, high blood pressure, adverse blood lipid profile, type 2 diabetes, breast and colon cancer, and metabolic syndrome.
- Strong evidence shows that regular physical exercise reduces depression and prevents falls.
These preceding principles and guidelines are updated every five years. Such regular updating requires ongoing research and evaluation. There are three stages involved in the update process (Health.gov., 2015; 2016a; 2016b):
- Stage 1 – Review of Current Scientific Evidence: The secretaries of Health and Human Services and the United States Department of Agriculture appoint a 15-member external advisory committee to be sure that the federal government is getting reliable external scientific advice. Nominations from the public were sought for candidates to serve on the 2015 committee. The goal of the committee was to provide advice and make recommendations to the federal government on the current state of scientific evidence on nutrition and health. Their responsibilities were to review the 2010 edition of the Dietary Guidelines to determine the topics for which new scientific evidence was most likely to be available and to review that evidence to help in the development of the 2015–2020 edition. In order to fulfill their responsibilities, committee members completed the following:
- Conducted original systematic reviews. The members systematically searched the scientific literature for relevant articles, assessed the methodology rigor of each article included in the process, and summarized, analyzed, and graded the evidence provided in each article.
- Reviewed existing systematic reviews, meta-analyses, and reports by federal agencies or leading scientific organizations. This review involved applying a systematic process to assess the quality of the existing review or report and to ensure that it presented a comprehensive review of the question of interest.
- Conduced data analysis. The committee members used national data from federal government agencies to address questions regarding chronic disease prevalence rates, food, and nutrient intakes of the population of the United States across age, sex, and other demographic characteristics, as well as questions regarding the nutrient content of foods.
- Conducted food pattern modeling analyses. The committee members estimated the effects of diet quality on possible changes in types or amounts of foods in the United States Department of Agriculture Food Patterns that it was in consideration of recommending.
- Stage 2 – Development of the Dietary Guidelines for Americans: In this stage, Health and Human Services and the United States Department of Agriculture developed the eighth edition of the Dietary Guidelines. The eighth edition was built upon the preceding edition, with scientific justification for revisions supported by the advisory committee report and information from public and federal agencies. The strength of the evidence that supported the 2015 recommendations was determined using the following criteria:
- Strong Evidence: Reflects a large, high-quality and/or consistent body of evidence. Strong evidence indicates that there is a high level of certainty that the evidence is relevant to the population of interest and that additional studies are not likely to change conclusions based on this evidence.
- Moderate Evidence: Reflects sufficient evidence to draw conclusions. However, the level of certainty may be constrained by limitations in the evidence presented in the studies.
- Limited Evidence: Reflects either a small number of studies, studies of weak design or with inconsistent results, and/or limitations on the generalization of the findings.
- Stage 3 – Implementing the Dietary Guidelines for Americans: Federal programs apply the Dietary Guidelines via food, nutrition, and health policies and programs, and in nutrition education materials for the public. For example, MyPlate is extensively used to promote the Dietary Guidelines.
To date, the Dietary Guidelines focused on persons ages two and older in the United States, including those who are at increased risk of chronic disease. However, as research continues to demonstrate association between early nutrition to health outcomes throughout the life span, it is anticipated that future guidelines (beginning with the 2020–2025 edition) will expand to include guidance for persons under the age of two and for women who are pregnant (Health.gov., 2015; 2016a).
Nursing Consideration: Nurses must be knowledgeable in how the Dietary Guidelines are developed and their content so that they can adequately provide patient/family education regarding these recommendations. Part of this knowledge is to be able to interpret MyPlate content and explain its recommendations to healthcare consumers.
MyPlate
MyPlate was introduced by the United States Department of Agriculture in 2011. It is a visual guide designed to provide an easy, quick graphic of how to eat according to the Dietary Guidelines for Americans (Dairy Council of California, 2019).
The MyPlate graphic divides a dinner plate into four sections. The fruits and vegetables sections make up half of the plate, emphasizing the guideline that recommends fruits and vegetables make up half of every meal. The second half of the plate is divided into two sections: one section for grains and one for protein. A smaller circle, separate from the plate, is for dairy (Dairy Council of California, 2019).
Recommendations that are part of MyPlate include the following (Dairy Council of California, 2019):
- Switching to fat-free or low-fat (1%) milk.
- Making at least half of grain intake whole grains.
- Choosing lean sources of protein.
- Drinking water instead of sugary drinks.
- Avoiding portions that are oversized.
- Comparing the amounts of sodium (salt) in foods like soups, breads, and frozen meals, and choosing foods with the lesser amounts of sodium.
MyPlate remains the federal government’s accepted graphic representation of healthy eating.
Harvard Healthy Eating Plate
In 2011, the Harvard Medical School published its own graphic representation of healthy eating guidelines. Harvard’s Healthy Eating Plate was also divided into four sections: vegetables, fruits, whole grains, and healthy proteins. Next to the plate was a glass representing water intake and a canister representing healthy oils (Harvard Health Publishing Harvard Medical School, 2017).
Citing what they felt were inadequacies in MyPlate, Harvard experts encouraged the following healthy-eating habits (Harvard Health Publishing Harvard Medical School, 2017).
- Choose whole grains, and limit refined grains, which act like sugars.
- Choose healthy proteins such as fish, poultry, beans, or nuts. Limit red meat and avoid processed meat, since eating even small quantities of these foods on a regular basis increases the risk of heart disease, diabetes, colon cancer, and weight gain.
- Eat a variety of vegetables. Americans are especially deficient in their vegetable intake except for potatoes and french fries, which contain large amounts of rapidly digested starch. Potatoes have the same effect on blood sugar as refined grains and sugars. Their consumption should be limited.
- The Healthy Eating Plate places fruits beneath vegetables on the plate, since not as much fruit is needed each day as vegetables.
- Choose healthy oils such as olive, canola, and other plant oils in cooking, on salads, and at the dining table. Butter and trans fat consumption should be limited.
- Drink water. Avoid sugary drinks. Limit milk and dairy to one to two servings each day. Limit juice intake, even 100% fruit juice, as juice contains as much sugar and as many calories as sugary soda.
- A figure at the bottom of the Healthy Eating Plate reminds people to stay active.
For more information and to view the Healthy Eating Plate visit: https://www.health.harvard.edu/staying-healthy/healthy-eating-plate
Healthy Eating and Food Groups
Healthy-eating recommendations include various terms about food groups. It is important that nurses be able to teach their patients about the identified groups and what constitutes healthy choices within each group. A number of websites offer the following explanations about food groups (Health.gov., 2015; 2016a; 2016b):
- Vegetables: A healthy diet includes a variety of vegetables from all of the five vegetable subgroups: dark green, red and orange, legumes (beans and peas), starchy, and other. These groups include all fresh, frozen, canned, and dried options in cooked or raw forms. These also include vegetable juices. Legumes are excellent sources of protein and fiber. Green peas and green (string) beans are not considered to be part of the legume subgroup because their nutritional components are not similar to legumes. Green peas are grouped with starchy vegetables, and green beans are grouped in the “other” vegetable subgroup, which also includes onions, iceberg lettuce, celery, and cabbage.
- Fruits: Healthy eating includes eating fruits, especially whole fruits. The fruits group includes whole fruits and 100% fruit juice. Whole fruits include fresh, canned, frozen, and dried forms of fruit. One cup of 100% fruit juice counts as one cup of fruit. However, fruit juice can be high in calories and some have added sugars. When consuming fruit juice, 100% juice should be selected without added sugars. Half a cup of dried fruit is equivalent to one cup of fruit. Dried fruits can contribute to extra calories if sugars are added.
- Grains: Grains are either whole or refined. The intake of refined grains should be limited. Examples of whole grains include brown rice and oats. Refined grains are those that have been processed to remove the dietary fiber, iron, and other nutrients. Examples of refined grains include products such as cookies, cakes, and some snack foods.
- Dairy: Healthy dietary intake of dairy products includes fat-free and low-fat (1%) milk, yogurt, cheese, or fortified (with vitamins A and D) soy beverages. Products sold as milk but made from plants, such as almond, rice, and coconut milks, may contain calcium but are not included as part of the dairy group because their overall nutritional content is not similar to dairy milk and fortified soy beverages. Recommended amounts of dairy are based on age rather than calories.
- Children ages two to three years: 2-cup equivalents of dairy per day.
- Children ages four to eight years: 2 ½ cup equivalents of dairy per day.
- Persons nine years of age and older: 3 cup equivalents per day.
- Protein: A variety of protein foods are part of healthy-eating patterns. Examples of protein foods include a number of subgroups including seafood, meats, poultry, eggs, nuts, seeds, and soy products. Legumes may be considered to be part of the protein food group and the vegetable food group.
- It is recommended that, for the general population, eight ounces of seafood should be consumed per week. However, mercury can be found in seafood in varying levels. It is recommended that women who are pregnant or who are breastfeeding and young children should eat seafood that is low in mercury. Examples of seafood that generally have lower levels of mercury include salmon, anchovies, herring, shad, sardines, Pacific oysters, trout, and Atlantic and Pacific mackerel.
- Meat, also known as red meat, includes all forms of beef, pork, lamb, veal, goat, and nonbird game. Poultry includes all forms of chicken, turkey, duck, geese, guineas, and game birds. Lean meats should be chosen over processed meats and processed poultry.
- Oils: Oils are not a food group, but are part of healthy-eating patterns because they are the major source of essential fatty acids and vitamin E. Healthy oils include those obtained from plant sources and not trans fats.
Whole Foods Versus Processed Foods
All forms of media communication discuss the benefits of “whole” foods. What exactly are whole foods? What makes them better? What is the difference between whole foods and processed foods?
Whole foods are nutrient dense. Processed foods are energy dense. Nutrient-dense foods provide the consumer with nutrients critical to health, such as fiber, vitamins, and minerals with low added sugar and fat. Energy dense foods are often high in calories that have little nutritional value (Jones, 2013; Mission Health, 2018).
Ideally, a whole food is one that consists of only one ingredient, such as an apple or a piece of chicken. These types of foods can help to reduce cholesterol and regulate blood sugar. Processed foods, on the other hand, contain more than one ingredient, and also contain added sugars, preservatives, dyes, and saturated and trans fats (Jones, 2013; Mission Health, 2018).
Additional advantages of whole foods include the following (Health Agenda Nutrition, 2017):
- Whole foods are rich in phytochemicals.
- Whole foods contain more vitamins and minerals than processed foods.
- Whole foods contain more fiber and beneficial fats than processed foods.
- Whole plant foods contain combinations of nutrients that work together to protect the body from disease.
Nursing Consideration: Examples of whole foods include those listed in healthy-eating guidelines, such as fresh fruits, and vegetables, fresh lean meats, and fresh eggs. Nurses must be able to differentiate among the nutritional value of whole versus processed foods and teach their patients the differences as well.
- Stage 1: Review of Current Scientific Evidence: The Secretaries of Health and Human Services and the United States Department of Agriculture appoint an external Dietary Guidelines Advisory Committee. Appointing a committee is done in order to ensuicit
Here are some reasons to avoid processed foods (Health Agenda Nutrition, 2017; Mission Health, 2018):
- Processed foods contain additives and preservatives and are often high in sodium.
- Processed foods may contain trans fats that elevate cholesterol.
- Processed foods may contain hidden allergens that may be a threat to those who suffer from food allergies.
- Some forms of processed foods contain large amounts of sugar. Examples include candy, sugared cereals, frozen desserts, and soft drinks.
- Processed foods high in calories and low in fiber contribute to overeating and weight gain. Foods high in fiber make people feel fuller more quickly compared to processed foods.
When people are shopping for groceries, they are often in a hurry and grab what is quickly and easily available, but it is worth taking the time to look for whole foods. Here are some tips for swiftly locating healthy, whole foods (Health Agenda Nutrition, 2017; Mission Health, 2018):
- Purchase seasonal fresh, whole foods from local farmers or farmers’ markets or through a community-supported agriculture (CSA) group.
- In grocery stores, shop around the perimeter of the store. That is where whole foods are located. Processed foods are in the aisles.
- Make a grocery list before leaving home. Make sure the list emphasizes shopping primarily around the periphery of the store for items such as fruits, vegetables, lean meats, and low-fat dairy items. People should travel into only one or two aisles per grocery store trip.
Organic Foods
In the not so distant past, organic foods were found only in health food stores, and people who purchased them were viewed, by many others, as a bit unusual or overly concerned about their diets. Today, however, organic foods are readily available at most grocery stores. But do organic foods really provide more health benefits than conventionally grown food products? Do the benefits outweigh disadvantages to purchasing organic food? For example, organic foods frequently cost considerably more than their counterparts raised by nonorganic methods. Organic foods cost more because they may decompose faster, and they are more labor-intensive to produce. Organic meats are costly because the food required to feed the animals is more expensive than foods fed to animals raised by conventional methods. In some cases, organic foods costs twice as much as nonorganic foods (Mayo Clinic, 2018g).
Organic refers to the way farmers grow and process agricultural products. Here are some facts about organically grown food (Mayo Clinic, 2018g):
- Organic farming practices are intended to help conserve soil and water and reduce pollution.
- Conventional methods of fertilization and weed control are not used by farmers who grow organic produce. Instead, natural fertilizers are used to feed soil and plants. Crop rotation or mulch is used to manage weeds.
- The United States Department of Agriculture (USDA) has established an organic certification program that regulates how these foods are grown, handled, and processed.
- Any product labeled as organic must be certified by the USDA. Food producers who sell less than $5,000 a year in organic foods are exempt from certification, but they are still required to follow the department’s standards for organic foods.
- To be labeled as 100% organic, food products must be either completely organic or made of all organic ingredients.
- To be labeled organic, food products must be at least 95% organic.
- To be labeled made with organic, foods must be composed of at least 70% certified organic ingredients. If less than 70% of a multi-ingredient product is certified organic, it may not be labeled as organic or carry a USDA seal.
- Only foods that are grown and processed according to the USDA standards may be labeled organic.
A common barrier to buying organic foods is cost. Organic foods are usually more costly than conventional foods because, in part, the farming practices used are more expensive. Additionally, organic products may spoil quicker because they are not treated with preservatives (Maloney, 2019a; Mayo Clinic, 2018g).
EBP Alert! There is a growing body of evidence that indicates some potential health benefits of organic foods including increased amounts of nutrients, higher levels of omega-3 fatty acids, and reduced exposure to toxic metals, pesticide residue, and bacteria (Maloney, 2019a).
Individuals who buy organic foods express certain concerns about nonorganic foods, including the following (Maloney, 2019a; Mayo Clinic, 2018g):
- Pesticide use: Conventional farmers spray pesticides that can leave residue on food products. Organic farmers use insect traps, disease-resistant crop selection, predator insects, or beneficial microorganisms to control crop-damaging pests. Thus, organic products typically carry significantly less pesticide residue than conventional food. Pesticide residue on both organic and nonorganic does not exceed government-identified safety thresholds.
- Food additives: Organic regulations ban or significantly limit the use of food additives, processing aids, and fortifying agents that are commonly used in the production of nonorganic foods. Examples of fortifying agents include preservatives, artificial sweeteners, colorings and flavorings, as well as monosodium glutamate.
- Environmental concerns: Organic farmers focus on reducing pollution and conserving water and soil quality.
Nursing Interventions
As noted throughout this education program, nurses play a critical role in educating patients about nutrition. There is an unlimited amount of information available on the Internet concerning nutrition, various types of diets, and how to use nutrition to improve health and wellness. Some of this information is accurate and helpful, while some can be downright dangerous to the uninformed consumer. Nurses must not only be able to provide accurate, current information about the latest Dietary Guidelines for healthy eating, but also help patients to differentiate between fact and fiction when it comes to healthy eating.
Self-Assessment #5
Monica is a busy mother of three, including Tracey, a 16-year-old health and fitness enthusiast. Tracey frequently criticizes her family’s eating habits and tells her mother that they should all eat more “organic” foods. Monica doesn’t really understand the difference between organic and nonorganic food products and doubts if Tracey really understands what she is proposing. One day, Monica asks Tracey to accompany her to the grocery store, and tells her, “Now you can show me why you think this organic stuff is so much better than what we’ve been eating for years!” What should Tracey tell her mother about organic foods?
- Tracey should tell her mother all of the following EXCEPT
- organic foods typically carry significantly less pesticide reside.
- organic foods are less expensive than conventional foods.
- organic farmers focus on reducing pollution and conserving water and soil quality.
- organic regulations ban or significantly limit the use of food additives.
Specific Nutrients
There are many nutrients that are obtained from various food sources. Some of them, such as soy, have been credited with abundant healing properties, as have some vitamins and minerals. The following material, although not all-inclusive, provides information to help the nurse relay accurate information to patients and families about nutrients.
Phytonutrients
Phytonutrients or phytochemicals are natural chemicals found in plant foods. Good sources of phytonutrients are fruits, vegetables, whole grains, nuts, beans, and tea. Research suggests that phytonutrients may help prevent disease (WebMD, 2018c).
There are more than 25,000 phytonutrients. Here are descriptions of six of the most important phytonutrients and how they may impact health (WebMD, 2018c):
- Carotenoids: There are more than 600 carotenoids, which provide the yellow, orange, and red colors in various fruits and vegetables. Carotenoids function as antioxidants and convert alpha-carotene, beta-carotene, and beta-cryptoxanthin to vitamin A. They may help to lower the risk of prostate cancer and enhance eye health.
- Ellagic Acid: Ellagic acid is found most often in berries such as strawberries, raspberries, and in pomegranates. Ellagic acid may help to slow the growth of cancer cells and help the liver to neutralize cancer-causing agents in the body.
- Flavonoids: Sources of flavonoids include the following:
- Green tea, which may help to prevent certain malignancies.
- Citrus fruits, which work as antioxidants.
- Apples, berries, kale, and onions, which may help to reduce the risk of asthma, some malignancies, and heart disease.
- Resveratrol: Found in grapes, purple grape juice, and red wine, resveratrol acts as an antioxidant and anti-inflammatory.
- Glucosinolates: Found in cruciferous vegetables such as brussels sprouts, cabbage, kale, and broccoli, glucosinolates may have some cancer prevention properties.
- Phytoestrogens: Phytoestgrogens can cause estrogen-like effects, but can also block the effects of the body’s natural supply of estrogen. Isoflavones, a type of phytoestrogen, are found in soy foods and may be linked to a lower risk of endometrial cancer and a lower risk of bone loss in women.
Antioxidants
Antioxidants are synthetic or natural substances that may help to prevent or delay some types of cell damage. Vegetables and fruits are excellent sources of antioxidants. Research shows that people who eat more vegetables and fruits have lower risks of some diseases; however, it is not yet clear whether these results are linked to the amounts of antioxidants in vegetables and fruits, to other components of these foods, to other dietary choices, or to other lifestyle choices (National Center for Complementary and Integrative Health (NCCIH), 2016).
Antioxidants have been found to counteract the effects of free radicals. Free radicals are very unstable molecules that are formed naturally when people exercise and when the body converts food into energy. Free radicals also come from the environment in the form of air pollution, sunlight, and cigarette smoke. Free radicals can lead to what is referred to as oxidative stress, which is believed to play a part in the development of some diseases including cancer, heart disease, diabetes, Alzheimer’s disease, Parkinson’s disease, cataracts, and age-related macular degeneration (NCCIH, 2016).
Although the benefits that come from eating fruits and vegetables may include antioxidant-associated benefits, the role of antioxidant supplements is less clear. High-dose supplements of antioxidants may actually be harmful in some cases. Some research findings indicate that the use of high-dose beta-carotene supplements is linked to an increased risk of lung cancer in smokers, and the use of high-dose vitamin E supplements may increase the risk of hemorrhagic stroke and prostate cancer (NCCIH, 2016).
There is also the danger of interactions between antioxidant supplements and some medications. For example, the ingestion of vitamin E supplements may increase bleeding risk in patients who are taking anticoagulants. There is contradictory evidence regarding taking antioxidant supplements while receiving treatment for cancer. Some study findings indicate that such supplements may be helpful, while other findings suggest that they may actually be harmful. Persons undergoing cancer treatment should talk to their health care provider before adding any supplements to their diets (NCCIH, 2016).
For patients who are thinking about adding antioxidant supplements to their diets, it is recommended that they do the following (NCCIH, 2016):
- Not use antioxidant supplements to replace the guidelines for a healthy diet, conventional medical care, or as a substitute for seeking medical help for a health problem.
- Seek the advice of health care providers if they have age-related macular degeneration and are thinking about taking supplements. They should not take supplements without the advice of their health care providers.
- Obtain accurate information from reliable healthcare resources (e.g., healthcare professionals) before adding supplements to their diets. Supplements can interact adversely with medications and other supplements.
- Inform their health care providers about any complementary health care interventions they are thinking about trying. Seek their advice before starting any such interventions.
Soy
Soy has gained great popularity as a health food. It has been part of the human diet for thousands of years. It is not certain if the proposed health benefits of soy come from its isoflavones or from a combination of isoflavones and other nutrients found in soy. Researchers are investigating whether or not soy can help to prevent hormone-related cancers such as breast, prostate, and uterine cancer. They are also investigating the impact soy has on menopausal symptoms and on bone and heart health. However, the results are not definitive (Messina, 2016; WebMD, 2019c).
Here is a review of some of the research findings related to therapeutic uses of soy.
Cholesterol Reduction. Some research findings indicate that soy may reduce the risk of heart disease by lowering LDL (bad) cholesterol levels. Evidence indicates that a decrease in LDL cholesterol in response to soy protein is greater in the hypercholesterolemic compared to persons with normal cholesterol levels (Messina, 2016). Some studies indicate that adding soy protein to the diet can help lower LDL cholesterol by four to six percent (WebMD, 2019b).
Cancer. Findings related to soy as a cancer preventive agent are complicated. Most studies that found soy lowers the risk of breast cancer were conducted using Asian women as subjects, since these women generally eat a lot of soy. Additionally, study results suggest that a woman may receive the best protection if she eats a diet high in soy while young, rather than when she goes through menopause (Messina, 2016; WebMD, 2019b).
Some studies suggest that soy consumption decreases the risk of prostate cancer, and others suggest that soy consumption is linked to a lower risk of lung cancer and improves survival chances in patients who have lung cancer. However, not all studies show such benefits (Messina, 2016; WebMD, 2019b).
EBP Alert! Studies related to soy consumption and reduced cancer risk show mixed results. It is important that nurses stay current regarding soy research and its findings.
Osteoporosis. Results from studies on the impact of soy on osteoporosis prevention are mixed. Not many studies have been conducted, but some that have been conducted indicate that women who are approaching menopause and eat isoflavone-rich soy protein are more likely to boost bone mineral density than those who do not. However, other studies show that soy isoflavones do not increase bone mineral density in early postmenopausal women (Messina, 2016; WebMD, 2019b).
Menopause. As in other studies, results of whether or not soy reduces menopausal symptoms have been mixed. Studies with the most positive results show such results are associated with a daily intake of soy products with at least 15 mg of isoflavones (Messina, 2016; WebMD, 2019b).
Precautions Concerning Soy Intake. The following issues describe situations that indicate soy should be consumed with caution (Messina, 2016; WebMD, 2019b).
- Soy allergies: Persons allergic to soy and soy products should not consume soy or soy supplements.
- Breast cancer: Some studies suggest that soy consumption in women who have already had breast cancer may not be safe. However, other studies indicate that soy consumption in such patients is not harmful. Health care providers should be consulted before adding soy to the diet.
- Renal Disease: Soy contains more phosphorus and potassium than similar quantities of other protein sources, such as meat, poultry, and fish. Thus, persons with renal disease should consult with their health care providers before consuming soy products.
- Hypothyroidism: Isoflavones can reduce the amount of iodine in the body. Insufficient amounts of iodine may lead to inadequate thyroid function.
- Uterine cancer: Women who have had or who have uterine (endometrial) cancer should not consume large amounts of soy or soy supplements without first consulting with their health care providers.
- Pregnancy and breastfeeding: Soy food consumption in women who are pregnant or who are breastfeeding is generally considered safe. However, these women should not take soy supplements without first consulting with their health care providers.
Fats
Fats are nutrients that provide the body with energy and facilitate the absorption of the fat-soluble vitamins, D, E, K, and A. There are three types of fat: saturated, trans, and unsaturated (WebMD, 2019c).
Saturated Fat. Saturated fat is solid at room temperature and is found primarily in animal related foods such as milk, cheese, and meat (red meat has more saturated fat than poultry and fish). Food products that are made with butter, margarine or shortening contain significant amounts of saturated fat. Since saturated fat can elevate cholesterol levels, a healthy diet should have less than 10% of daily calories from saturated fat (WebMD, 2019c).
Trans Fat. Trans fat is hydrogenated, which increases its shelf life and makes it solid at room temperature. Trans fat is found in items such as processed foods, snack foods (e.g., potato chips), cookies, some margarines and salad dressings, and processed foods. This type of fat can also elevate cholesterol (WebMD, 2019c).
Unsaturated Fat. Unsaturated fat, which is liquid at room temperature, is obtained primarily from plants. Unsaturated fats may actually reduce cholesterol levels. Types of unsaturated fat include the following (WebMD, 2019c):
- Monounsaturated fat: Found in avocados, nuts, and vegetable oils, monounsaturated fat may actually help to reduce LDL (bad) cholesterol and help to maintain HDL (good) cholesterol.
Nursing Consideration: It is important to teach patients that eating greater amounts of unsaturated fat without reducing intake of saturated fat will not help to reduce LDL cholesterol (WebMD, 2019c).
- Polyunsaturated fat: Found primarily in vegetable oils such as safflower, sunflower, sesame, soybean, and corn oils, polyunsaturated fat is also the main fat in seafood. The two types of polyunsaturated fat are omega-3 and omega-6 fatty acids. Omega-3 fatty acids are found in foods from plants (e.g., soybean oil, walnuts, and flaxseed) and in fatty fish and shellfish such as salmon, anchovies, herring, sardines, trout, Pacific oysters, and Pacific mackerel. Guidelines for healthy diet recommend that eight ounces or more of these types of fish be consumed every week. Omega-6 fatty acids are found primarily in liquid vegetable oils.
Carbohydrates
Carbohydrates are the body’s primary energy source. There are three main types of carbohydrates (Mayo Clinic, 2017a):
- Sugar: Sugars are the simplest forms of carbohydrates. They occur naturally in foods such as fruits, vegetables, milk, and milk products. Sugars also include fruit sugar (fructose), table sugar (sucrose), and milk sugar (lactose).
- Starch: Starch is a complex carbohydrate, which means that it is comprised of multiple sugars that are bonded together. Starch is found naturally in vegetables, grains, and cooked dry beans and peas.
- Fiber: Fiber, also a complex carbohydrate, occurs naturally in fruits, vegetables, whole grains, and cooked dry beans and peas.
Carbohydrates are important to good health. Dietary Guidelines for Americans recommend that carbohydrates make up 45–65% of the total daily caloric intake (Mayo Clinic, 2017a).
Carbohydrates, important components of a healthy diet, must be chosen wisely. Here are some guidelines to incorporate healthy carbohydrates into the diet (Mayo Clinic, 2017a):
- Choose fiber-rich fruits and vegetables. Choose whole, fresh, frozen, and canned fruits and vegetables without added sugar.
- Choose whole grains. Whole grains are good sources of fiber and other important nutrients.
- Choose low-fat dairy products. Dairy products are good sources of calcium and protein, but choose low-fat dairy products to limit saturated fat and calories.
- Increase bean and legume intake. Legumes and beans are good sources of iron, protein, potassium, and magnesium as well as good fats and fiber. Legumes can be a healthy substitute for meat.
- Limit the intake of added sugars. There is no health advantage to consuming added sugars, although consuming a small amount of added sugar will probably not have negative health impacts. However, consuming too much added sugar can lead to poor nutritional intake, weight gain, and tooth decay.
Fiber
Fiber has many health benefits. It can help maintain a healthy weight, lower the risk of heart disease and diabetes, and prevent or relieve constipation. Dietary fiber is found primarily in fruits, vegetables, and legumes (Mayo Clinic, 2018h).
Dietary fiber is also known as roughage or bulk and includes the components of plant foods that the body is unable to digest. This means that it passes nearly intact through the stomach, small intestine, colon, and out of the body (Mayo Clinic, 2018h).
There are two types of fiber: Soluble fiber, which dissolves in water to form a soft, gel-like material, is found in food such as oats, peas, beans, apples, and barley. It can help to reduce cholesterol and glucose levels. Insoluble fiber, found in whole wheat flour, wheat bran, nuts, beans and vegetables, facilitates digestive system movement, increases the bulk of stools, and helps to regulate elimination patterns (Mayo Clinic, 2018h).
Proteins
Proteins are referred to as the building blocks of life. Every cell in the body contains proteins, which are made of up to 20 different types of amino acids. Proteins (Lawler, 2019) will do the following:
- Provide energy.
- Repair cells.
- Stimulate the growth of new cells.
- Promote growth and development in children, teenagers, and the fetus in pregnant women.
Protein is found in both animal and nonanimal sources. Animal sources of protein include meat, poultry, fish, and eggs. Nonanimal sources of protein include soy products, beans, nuts, and some grains. The Institute of Medicine (IOM) recommends that adults obtain a minimum of eight grams of protein daily for every 20 pounds of body weight. Most adults need two to three servings of foods rich in protein every day (Lawler, 2019).
Excessive amounts of protein, however, can cause certain adverse effects, including the following (Lawler, 2019):
- Abdominal pain.
- Eating pattern changes.
- Hepatic complications.
- Increased workload on the kidneys.
Nursing Consideration: The amount of protein consumed as part of a well-balanced diet is generally considered to be adequate and safe (Lawler, 2019). Nurses must advise patients about protein sources and how protein should be consumed as part of a healthy diet.
Vitamins
Vitamins are important to a state of health and wellness and are classified as water-soluble and fat-soluble.
Water-Soluble Vitamins. Water-soluble vitamins travel throughout the body without inhibition, and excess amounts are typically excreted by the kidneys. It is unlikely that water-soluble vitamins will reach toxic levels (WebMD, 2018d). The following are important points about water-soluble vitamins (Medline Plus, 2019; WebMD, 2018d):
- Thiamine (vitamin B1): This vitamin is important to nerve function and energy. It is found in pork, whole-grain or enriched breads and cereals, legumes, nuts, and seeds.
- Riboflavin (vitamin B2): Vitamin B2 is needed not only for energy metabolism, but is also important for normal vision and integumentary health. Sources of this vitamin include milk and milk products, green leafy vegetables, whole-grain, enriched breads and cereals.
- Niacin (vitamin B3): Also needed for energy metabolism, vitamin B3 is essential for the health of the nervous and digestive systems and integumentary health. Sources of vitamin B3 include meat, poultry, fish, whole-grain or enriched breads and cereals, leafy green vegetables, mushrooms, asparagus, and peanut butter.
- Pantothenic acid: Needed for energy metabolism, pantothenic acid is found in many food sources.
- Biotin: Biotin is needed for energy metabolism and is widespread in foods. It is also produced by bacteria in the intestinal tract.
- Pyridoxine (vitamin B6): Vitamin B6 is a part of an enzyme essential for protein metabolism. It also helps in the manufacture of red blood cells (RBCs). Sources of this vitamin include meat, fish, poultry, vegetables, and fruits.
- Folic acid: Folic acid is needed for the manufacture of DNA and new cells, red blood cells in particular. Folic acid is found in leafy green vegetables and legumes, seeds, orange juice, and liver. Folic acid is currently added to most refined grains.
- Cobalamin (vitamin B12): Vitamin B12 is needed for the manufacture of new cells and is important for nerve functioning. It can be found in meat, poultry, fish, seafood, eggs, milk, and milk products. However, it is not found in plant foods.
- Ascorbic Acid (vitamin C): Vitamin C is an antioxidant and is needed for the metabolism of protein. It facilitates iron absorption, and is important for a healthy immune system. Vitamin C is found only in fruits and vegetables, especially citrus fruits, vegetables in the cabbage family, cantaloupe, strawberries, tomatoes, potatoes, lettuce, papayas, mangoes, and kiwi.
Fat-Soluble Vitamins. Fat-soluble vitamins are stored in body cells and are not excreted as quickly or easily as water-soluble vitamins. Excessive amounts of fat-soluble vitamins can lead to toxicity (Medline Plus, 2019; WebMD, 2018d). The following are important points about fat-soluble vitamins (Medline Plus, 2019; WebMD, 2018d):
- Vitamin A: Vitamin A, important for vision, healthy skin and mucous membranes, the growth of bones and teeth, and a healthy immune system, is obtained from animal sources, fortified milk, cheese, cream, butter, fortified margarine, eggs, and liver. Vitamin A’s precursor is beta-carotene, which is obtained from leafy, dark green vegetables, dark orange fruits, and vegetables.
- Vitamin D: Vitamin D is essential for adequate calcium absorption and is stored in the bones. Vitamin D is obtained from egg yolks, fatty fish, fortified milk, and fortified margarine. The skin can make vitamin D when it is exposed to adequate amounts of sunlight.
- Vitamin E: Vitamin E is known for its antioxidant properties, which help to protect the walls of the body’s cells. Vitamin E is obtained from polyunsaturated plant oils, leafy green vegetables, wheat germ, whole-grain food products, liver, egg yolks, nuts, and seeds.
- Vitamin K: Vitamin K is essential for the proper clotting of blood. It may be found in leafy green vegetables, vegetables in the cabbage family, and milk. It is also manufactured by bacteria that live in the intestinal tract.
Calcium
Calcium is essential for the healthy functioning of the heart, muscles, and nerves, as well as for the safe and appropriate clotting of blood. Research shows that insufficient amounts of calcium are associated with the development of osteoporosis, low bone mass, and high incidence of fractures (National Institute of Health (NIH) Osteoporosis and Related Bone Diseases National Resource Center, 2018).
Adults between the ages of 18 and 50 need 1,000 mg/day of calcium. Men between the ages of 51 to 70 need 1,000 mg/day of calcium daily, and women between the ages of 51 to 70 require 1,200 mg daily (NIH Osteoporosis and Related Bone Diseases National Resource Center, 2018).
It is essential that the body has enough vitamin D, which is needed to absorb calcium. Vitamin D leads to the formation of calcitriol, referred to as active vitamin D. In turn, inadequate amounts of vitamin D lead to insufficient absorption of calcium from the diet. If this occurs, the body takes calcium from the bones, which weakens the skeletal system and prevents new bone formation (NIH Osteoporosis and Related Bone Diseases National Resource Center, 2018).
Nursing Consideration: Up to the age of 70, a daily intake of 600 IU (International Units) of vitamin D is recommended. Men and women over the age of 70 should increase their intake to 800 IU daily. Nurses should educate their patients about sources of vitamin D: through the skin, from diet, and from supplements. Foods rich in vitamin D include egg yolks, saltwater fish, liver, and fortified milk. People should consult their health care providers about the need for vitamin D supplements (NIH Osteoporosis and Related Bone Diseases National Resource Center, 2018).
Self-Assessment #6
A professor of nursing is preparing a class on nutrients. The professor wants students to comprehend the importance of nutrients to health and wellness.
- The professor will include which of the following in the class on nutrients?
- Vitamin A is important for vision, healthy skin, and a healthy immune system.
- Vitamin E is necessary for the absorption of calcium.
- Folic acid is stored in body cells.
- Niacin is vitamin B1.
Types of Diets
There are many types of diets in popular use today. Research shows that some are quite beneficial to health and wellness, while others, despite popularity in the media, have yet to be proven to enhance health. The following diets are widely discussed and have many proponents, as well as some critics.
Paleolithic (Paleo) Diet
Gloria is a college freshman. She has made a number of friends who are focused on dieting and losing weight. Several of them decide that the “caveman” diet is a surefire way to lose weight. When Gloria asks them what they mean, they explain, “It’s the way the first humans ate before all of these horrible preservatives and the junk they use to spray food crops were invented.” Gloria is planning on majoring in nursing and, although she is anxious to lose some weight herself, she decides that she needs to find out more about this diet before she joins her friends in adopting it.
Gloria has made a sound decision. All diets should be carefully investigated for nutritional value before one decides to follow them. The so-called “caveman” diet is known as the paleo diet, the Paleolithic diet, the Stone Age diet, and the hunter-gatherer diet. Proponents of this diet believe that by eating like prehistoric humans, people will be thinner and less likely to develop diabetes, heart disease, and cancer (Mayo Clinic, 2017b; McMillen, 2018).
The paleo diet is high in protein and fiber and is designed to help people lose weight without cutting calories. It is based on foods similar to what might have been eaten during the Paleolithic era (2.5 million to 10,000 years ago) (Mayo Clinic, 2017b; McMillen, 2018).
Proponents of the paleo diet believe that the human body is better suited to eating the way prehistoric humans did prior to the diets that emerged with farming. Farming changed the way humans ate when dairy, grains, and legumes were added as important components of dietary intake. According to paleo enthusiasts, farming triggered rapid changes in nutritional intake, which did not allow the body enough time to adapt to these dietary changes. They believe that these overwhelming changes contribute to the current prevalence of obesity, cardiac disease, and diabetes (Mayo Clinic, 2017b; McMillen, 2018).
These are the foods allowed by the paleo diet (Mayo Clinic, 2017b; McMillen, 2018):
- Nuts and seeds.
- Lean meats, particularly those that are grass-fed or wild game.
- Fish, especially those that are rich in omega-3 fatty acids such as salmon, mackerel, and albacore tuna.
- Oils from fruits and nuts such as olive oil or walnut oil.
These foods are not allowed by the paleo diet (Mayo Clinic, 2017b; McMillen, 2018):
- Any processed foods.
- Grains such as wheat, oats, and barley.
- Legumes such as beans, lentils, peanuts, and peas.
- Refined sugar.
- Refined vegetable oils such as canola oil.
The paleo diet also stresses the importance of drinking water and being physically active every day (Mayo Clinic, 2017b; McMillen, 2018).
Research findings regarding the benefits of the paleo diet are mixed. There are both positive and negative findings.
Clinical trials of 12 weeks or less show that the paleo diet may provide some moderate health benefits when compared with diets of fruits, vegetables, lean meats, whole grains, legumes, and low-fat dairy products, including the following (Mayo Clinic, 2017b; McMillen, 2018).
- Increased weight loss.
- Improved glucose tolerance.
- Improved blood pressure control.
- Better management of appetite.
EBP Alert! Short-term clinical trials do not provide enough data regarding the health benefits (or lack of benefits) concerning the paleo diet. Nurses should promote longer trials with large groups of participants who are randomly assigned to various diets to identify long-term, overall health benefits and possible risks of the diet. To date, there are no long-term clinical trials that identify benefits and risks of the paleo diet (Mayo Clinic, 2017b; McMillen, 2018).
Some experts in nutrition argue that proponents of the paleo diet have oversimplified the components of the diet of the earliest humans. Their concerns include (Mayo Clinic, 2017b; McMillen, 2018). The evolution of the human diet would have depended on geography, climate, and food availability, not only on the shift to farming as a means of acquiring food.
- Findings from archeological research show that early human dietary intake may have included wild grains as much as 30,000 years ago. This was well before farming existed.
- Genetic research shows that significant evolutional changes continued after the Paleolithic era. These included changes in the body to help breakdown dietary starches and other food components.
Strengths and Weaknesses of the Paleo Diet. Proponents of the paleo diet identify the following strengths (Mayo Clinic, 2017b; McMillen, 2018):
- There is no counting of calories on the paleo diet. The consumption of fiber-rich foods, such as fruits, vegetables and lean meat, will make people feel fuller quicker.
- There are no requirements for meetings (either in person or online).
- People can follow this diet without the need for coaches or counselors. However, there are paleo diet forums online (and on social media) to network with other followers of this diet.
- Eliminating grains, dairy, processed food and sugar will most likely lead to weight loss.
- Proponents of the diet claim that there is evidence that shows following the paleo diet may lower the risk of heart disease, hypertension, and inflammation, reduce acne, and promote health and wellness.
Weaknesses and/or criticisms of the paleo diet include the following (Mayo Clinic, 2017b; McMillen, 2018):
- Wheat and dairy products are prohibited.
- Processed foods and packaged meals are prohibited.
- Followers of vegetarian or vegan diets will not be able to follow a paleo diet. Intake of meat, seafood, and eggs are essential to the paleo diet. Vegetarian sources of protein (e.g., beans and other legumes) are prohibited.
- Cost may be an issue. Eating large quantities of meat and fish can increase the cost of groceries.
- The paleo diet may be hard to follow long term because of dietary restrictions.
- Dieters will need to stock up on approved foods and cook them from scratch. Therefore, they need to plan on incorporating shopping and cooking into their schedules.
Nursing Consideration: The paleo diet has both advantages and disadvantages. Nurses should advise their patients to consult with their health care providers before starting this, or any other diet.
Mediterranean Diet
Jason is a 40-year-old high school football coach. He also has his own sports clinic when football season is over. He loves these jobs, but they are accompanied by a great deal of stress and long working hours. This makes it difficult for him to exercise as regularly as he would like, and he often grabs fast food instead of healthy meals. Jason’s family is concerned about some of his unhealthy lifestyle choices. Jason’s father died at the age of 50 from a massive heart attack. His mother has a history of hypertension and elevated cholesterol. Jason makes an appointment with the nurse practitioner at his family practice office. After doing some research, he is thinking of adopting the Mediterranean diet. But before doing so, he wants some advice and guidance.
The Mediterranean diet has been known as a heart-healthy eating plan for some time. Research indicates that this type of diet can help to prevent heart disease, stroke, and premature death. The most positive impact seems to be correlated with adopting this diet early in life. However, newer studies indicate that adopting it during midlife also has positive results (Mayo Clinic, 2019a).
Additional findings show that the Mediterranean diet is associated with a small reduction in the incidence of some breast cancer and a primary overall protection from colorectal cancer. The diet may be beneficial in reducing the risk of breast cancer and colorectal cancer (Schwingshackl, Schwedhelm, Galbete, & Hoffmann, 2017).
What are the components of a Mediterranean diet? Here is a summary of its elements (Mayo Clinic, 2019a; Schwingshackl, Schwedhelm, Galbete, & Hoffmann, 2017):
- Every meal should be based on plant-based foods, such as whole grains (rather than refined grains), fruits and vegetables, legumes, nuts, olive oil, seeds, herbs, and spices.
- Butter should be replaced with healthy fats such as olive oil and canola oil.
- Fruits and vegetables should be used as snack foods rather than highly salted foods, such as potato chips and crackers.
- Herbs and spices should be used to flavor foods rather than salt.
- Intake of red meat should be limited to no more than a few times a month.
- Fish should be eaten at least twice a week.
- Moderate portions of poultry and eggs should be eaten every two days or weekly.
- Moderate portions of cheese and yogurt should be consumed daily to weekly. Dairy products should be fat-free or low-fat.
- Plenty of water should be consumed every day.
The focus of the Mediterranean diet is on making wise choices about what is eaten. For example, the following are good choices (Mayo Clinic, 2019a):
- Grains in the Mediterranean region are generally whole grain and contain very few unhealthy fats.
- Bread is an important part of the diet in this region. However, bread is eaten either plain or dipped in olive oil, not with butter or margarine that contain saturated or trans fats.
- Olive oil, a monounsaturated fat that can help reduce LDL cholesterol, is the primary source of fat.
- Nuts are an important part of the Mediterranean diet. Nuts are high in unsaturated fat and calories, so they should not be eaten in large amounts. No more than a handful a day should be consumed.
- Fatty fish (e.g., salmon, albacore tuna, lake trout, herring, sardines, and mackerel) are rich in omega-3 fatty acids and are eaten as a regular part of the Mediterranean diet.
Consumption of red wine is also part of the Mediterranean diet. Recent claims have surfaced regarding the heart health benefits of red wine. Red wine contains antioxidants called polyphenols that may help to prevent heart disease by increasing HDL (good cholesterol) levels and protecting arteries from damage, which, in turn, may prevent blood clots (Mayo Clinic, 2019b).
EBP Alert! Various studies have shown that moderate amounts of all types of alcohol can benefit the heart, not just alcohol found in red wine. It may be that alcohol has these benefits: (1) raises HDL cholesterol; (2) reduces formation of blood clots; (3) helps to prevent arterial damage caused by high levels of LDL cholesterol; and (4) may improve the function of cells that line blood vessels (Mayo Clinic, 2019b).
There are other foods that contain resveratrol, such as grapes, peanuts, blueberries, and cranberries. It is not yet known if consuming these foods are comparable to red wine concerning heart health benefits (Mayo Clinic, 2019b).
Both the American Heart Association and the National Heart, Lung, and Blood Institute do not recommend that people start drinking alcohol to prevent heart disease. Alcohol can lead to addiction problems or exacerbate other health problems (Mayo Clinic, 2019b).
Some of the problems associated with too much alcohol intake include the following (Mayo Clinic, 2019b):
- Elevation of blood pressure.
- Hepatic damage.
- Elevation of triglycerides.
- Some cancers.
- Lack of coordination leading to accidents.
Too much alcohol has been associated with a weakening of the cardiac muscle and heart failure. People with heart failure or cardiomyopathy (weakened muscles of the heart) should not drink alcohol at all. Alcohol should not be consumed by pregnant women (Mayo Clinic, 2019b).
A drink of alcohol is defined as 12 ounces of beer, 5 ounces of wine, or 1.5 ounces of 80 proof distilled spirits. In healthy adults, this means that women of all ages and men older than 65 years of age should limit their alcohol intake to no more than one drink per day. Men 65 years of age and younger should drink no more than two drinks per day. The limit for men is higher than for women because men usually weigh more and have more of the enzyme that metabolizes alcohol than do women (Mayo Clinic, 2019b).
Dash Diet
High blood pressure runs in Jeffrey’s family. His parents and siblings all take medication to control their blood pressure, and Jeffrey, although only 28 years old, has just been prescribed an antihypertensive agent as well. Concerned about Jeffrey’s health, he and his wife decide to adopt a healthier lifestyle, including changing their eating habits. After discussing their concerns with Jeffrey’s health care provider, they decide to follow the DASH diet, which is designed to help treat or prevent elevated blood pressure.
DASH stands for Dietary Approaches to Stop Hypertension. The DASH diet is designed as a lifelong approach to healthy eating. Its goal is to help prevent or reduce hypertension (Asay, 2019; Mayo Clinic, 2019c).
According to information published by the Mayo Clinic, people who follow the DASH diet may be able to reduce their blood pressure by a few points in just two weeks. By following it over a period of time, systolic blood pressure could drop by as much as 8–14 points (Mayo Clinic, 2019c).
The DASH diet has a number of health benefits in addition to lowering blood pressure. The DASH diet’s components are complementary with dietary recommendations to prevent osteoporosis, cardiac disease, some cancers, stroke, and diabetes (Mayo Clinic, 2019c).
DASH diet, like many recommendations for healthy-eating patterns, focuses on consumption of vegetables, fruits, and low-fat dairy foods, and on moderate amounts of whole grains, fish, poultry, and nuts. It also stresses reduction in sodium intake (Asay, 2019; Mayo Clinic, 2019c).
There are two versions of the DASH diet: a standard version and a lower sodium DASH diet. The standard DASH diet allows for the consumption of up to 2,300 mg of sodium a day. The lower sodium DASH limits sodium consumption to 1,500 mg a day. Either version significantly reduces the amount of sodium that is generally consumed in a typical American diet, which may consist of 3,400 mg of sodium a day or more. The standard DASH diet is in accordance with the Dietary Guidelines for Americans, which recommend that sodium intake be limited to less than 2,300 mg per day (Mayo Clinic, 2019c).
The DASH diet is low in saturated fat, total fat, and cholesterol. It allows for the consumption of small amounts of red meat, sweets, and fats. Total caloric consumption is 2,000 calories per day according to the following guidelines (Asay, 2019; Mayo Clinic, 2019c).
- Grains: The DASH diet allows for six to eight servings of grains per day. The focus is on whole grains such as brown rice instead of white rice, whole-grain bread instead of white bread, and whole wheat pasta instead of regular pasta. Consumers are urged to read the labels of food products. Appropriate examples are “100% whole grain” or “100% whole wheat.” Whole grains are low in fat. To maintain this low level of fat, consumers are urged to avoid adding butter, cream, and/or cheese to grains. An example of one serving of grains is one slice of whole wheat bread or one-half cup of cooked cereal, rice, or pasta.
- Vegetables: Four to five servings of vegetables per day should be consumed when following the DASH diet. Vegetables contain high amounts of fiber, vitamins, and minerals. Ways to increase the amount of vegetables consumed per day include using vegetables as main dishes. For example, spread vegetables over brown rice or whole wheat pasta as a main dish. Both fresh and frozen vegetables are appropriate food sources. Examples of one serving of vegetables include one cup of raw leafy green vegetables or one-half cup of cooked vegetables.
- Fruits: Like vegetables, the recommended number of servings of fruits is four to five servings per day. Fruits can be part of meals or consumed as snacks. Most fruits are low in fat and high in fiber. One serving of fruit is defined as one medium fruit, one-half cup of fresh, frozen, or canned fruit, or four ounces of fruit juice. It is recommended that the peels remain on fruit whenever possible. Peels of fruits such as apples contain significant amounts of nutrients and fiber. Persons eating canned fruit or fruit juices should read the labels to be sure that they contain no added sugar.
Nursing Consideration: Some citrus fruits can interact with various medications, so persons following the DASH diet should consult their health care providers regarding intake of citrus fruits. For example, persons taking the cholesterol-lowering agent simvastatin (Zocor) should avoid consuming grapefruits or grapefruit juice (Comerford & Durkin, 2020).
- Dairy: The DASH diet allows for two to three servings of dairy products per day. For example, one serving of dairy is one cup of skim or 1% milk or 1½ ounces of part-skim cheese. Persons following the DASH diet should choose dairy products that are low in fat or fat-free. Dairy products are excellent sources of calcium, vitamin D, and protein. Lactose-free products are available for persons that have difficulty digesting dairy products. Over-the-counter products that contain the enzyme lactase can help to reduce or prevent symptoms of lactose intolerance.
- Lean meat, poultry, and fish: The DASH diet recommends six servings or less per day of lean meat, poultry, and fish. When eating meat, consumers should choose those that are lean and eat no more than six ounces a day. Poultry and meat should be baked, broiled, grilled, or roasted and not fried in fat. When choosing fish, people should eat heart-healthy fish such as salmon, herring, and tuna. These types of fish are high in omega-3 fatting acids, which can help to reduce total cholesterol levels.
- Nuts, seeds, and legumes: Examples of this food group in the DASH diet include almonds, sunflower seeds, kidney beans, peas, and lentils. These types of foods are rich in minerals, fiber, and phytochemicals. These foods are also high in calories and should be eaten only a few times per week (four to five servings a week). For example, one serving is the equivalent of one-third cup of nuts or one-half cup of cooked beans or peas.
- Fats and oils: The recommended number of servings of fats and oils is two to three servings a day. Fats are important to the absorption of essential vitamins and the maintenance of a healthy immune system. However, excessive amounts of fat increase the risk of obesity, diabetes, and cardiac disease. The DASH diet limits total fat intake to less than 30% of daily calories from fat, and intake should focus on healthy monosaturated fats. Consumers should be taught to read food labels so that they can select fats and oils that are lowest in saturated fat and without trans fats.
- Sweets: The DASH diet does not prohibit sweets, but limits them to five servings or less per week. One serving of a sweet includes such items as one tablespoon of sugar or jelly, or one-half cup of sorbet. When choosing sweets, people should choose those that are fat-free or low in fat.
Raw Food Diet
Gloria is a breast cancer survivor. She completed treatment 10 years ago and there is no evidence of cancer at this time. She is very interested in nutrition and how diet can impact health. She is especially interested in how diet can help to prevent cancer or facilitate its treatment. One of her friends is an advocate of the raw foods diet, and she tells Gloria, “this is really the only way to eat. If you want to stay healthy you need to check it out!” Gloria has never heard of a raw foods diet and can’t imagine what it would be like to eat only raw foods. Could it help her to stay healthy?
The raw food diet is just what it sounds like; it consists of raw fruits, vegetables, and grains. The theory behind the raw foods diet is that heating food destroys its nutrients and naturally occurring enzymes, which enhance digestion and help to prevent chronic diseases. Proponents of this diet claim that it can prevent headaches, cure allergies, enhance the working of the immune system, and improve arthritis and diabetes (Robinson, 2019).
What foods are allowed on the raw foods diet? Allowed foods are uncooked, unprocessed, and mostly organic. Staples of this diet are raw fruits, vegetables, nuts, seeds, and sprouted grains. Some people also eat unpasteurized dairy foods, raw eggs, meat, and fish. Foods can be cold or slightly warm, as long as the food temperature does not go above 118 degrees. Blenders, food processors, and dehydrators can be used in food preparation (Robinson, 2019).
Advantages of the Raw Foods Diet. There are a number of potential advantages associated with the raw foods diet (Robinson, 2019):
- The diet is acceptable to vegetarians and vegans. However, a dietician should be consulted to ensure that nutritional needs are met.
- Persons who need to follow a gluten-free diet can follow the raw foods diet since most raw foods are naturally free of gluten.
- The raw foods diet is low in sodium. This might decrease the risk of stroke, heart failure, osteoporosis, cancer of the stomach, and renal disease.
- Eating a great deal of vegetables and fruits can help to lose weight and help to manage type 2 diabetes.
- The raw foods diet is high in fiber, and many vitamins and minerals, as well as in phytochemicals.
Disadvantages of the Raw Foods Diet. There are also a number of disadvantages associated with the raw foods diet, such as the following (Robinson, 2019):
- Preparing raw foods can take a great deal of time. For example, the time needed for blending and dehydrating foods and germinating nuts and sprout seeds can be extensive.
- Some uncooked and unpasteurized foods are associated with foodborne illnesses. Thus, foods must be thoroughly washed, especially foods most often associated with foodborne illnesses, such as sprouts, raspberries, green onions, and lettuce.
- Due to the risk of foodborne illness, the raw foods diet is not recommended for pregnant women, young children, older adults, people whose immune systems are compromised, and people who have chronic medical conditions, such as renal disease.
- It may be expensive to follow the raw foods diet. Organic foods are typically more expensive than conventionally grown foods. Appliances used to prepare food such as juicers, blenders, and dehydrators can be expensive.
- The raw foods diet is deficient in some essential nutrients, such as protein, iron, calcium, and vitamin B12.
- Cooking foods can help to prevent foodborne illnesses and can even boost certain nutrients such as beta-carotene.
Nursing Consideration: Before deciding to follow a raw foods diet, one should consult his or her health care providers to ensure that adequate recommended nutrients are being received.
Gluten-Free Diet
Amanda has a family history of celiac disease. Amanda, now in her early 20s, is starting to have periods of intense abdominal cramping, diarrhea, and weakness. In consultation with her health care provider, Amanda is going to adopt a gluten-free diet.
Gluten is a protein found in grains such as wheat, barley, and rye. Primarily used to treat celiac disease, gluten-free eating has been gaining popularity among persons who do not have the disease as well. Adopting a gluten-free diet requires a significant change in one’s diet. However, it can have a positive impact on gastrointestinal symptoms and enhance the quality of life of people who react negatively to gluten (Mayo Clinic, 2017c).
As the popularity of gluten-free eating has grown, so has the number and variety of gluten-free foods that are available. Various gluten-free breads and pasta products are available, as well as items such as gluten-free pizza (Mayo Clinic, 2017c).
Many foods that are tasty and healthy are naturally gluten-free. Examples of such foods include the following (Mayo Clinic, 2017c):
- Natural and unprocessed beans, seeds, and nuts.
- Fresh eggs.
- Fresh meats, fish, and poultry as long as they are not breaded, marinated, or coated with batter.
- Fruits and vegetables.
- The majority of dairy products.
Foods that should be avoided include the following (Mayo Clinic, 2017c):
- Food products that contain barley including malt, malt flavoring, and malt vinegar.
- Triticale (a cross between wheat and rye).
It is important that nurses provide persons who are on gluten-free diets with adequate education regarding its guidelines and facilitate consultation with a dietician as needed. Some important patient and family education tips include the following (Mayo Clinic, 2017c):
- Read labels on all food products before purchasing and/or eating them. Be sure that they are specifically labeled gluten-free or are made with corn, rice, soy or other gluten-free grains.
- Avoid oats and oat products unless they are clearly labeled as gluten-free.
- Check food labels for the addition of food additives that contain gluten, such as malt flavoring and modified food starch.
- Check for use of gluten as a binding agent in medications and vitamins.
- Be wary of cross-contamination. For example, cross-contamination can take place when gluten-free foods come into contact with foods that contain gluten. This can occur during the manufacturing process if the same equipment is used to make many types of foods. Cross-contamination can occur in the home if foods are prepared on common surfaces or with the same utensils. Even using a toaster for gluten-free and regular bread can be problematic.
- Be cautious when eating in restaurants. Ask how gluten-free items are prepared and what steps are taken to avoid cross-contamination.
- Ask your health care provider or dietician how to obtain nutrients that are not readily provided in a gluten-free diet. Examples of these nutrients are iron, calcium, fiber, thiamin, riboflavin, niacin, and folate.
The Zone Diet
Trudy and her college friends are anxious to lose weight and have obtained information from the Internet about numerous diets, many of which promise significant weight loss. One diet in particular captures their interest. This is the Zone diet; whose proponents say that followers can burn fat as they sleep. Trudy and her friends think that this is the diet for them!
What is the Zone diet? Created by the biochemist, Barry Sears, PhD, the Zone diet was designed to reset the metabolism in order to prevent or reduce the risk of heart disease, diabetes, and other chronic health conditions. The premise of the Zone diet is that by balancing the amount of fat, carbohydrates, and protein in the diet, the body will burn fat, even during sleep (Levitt & Zelman, 2018; Stoppler, 2018).
This diet restricts calorie intake to 1,200 calories a day for women and 1,500 for men. Specifically, 30% of these calories are to come from fat, 30% come from protein, and 40% from carbohydrates (Levitt & Zelman, 2018; Stoppler, 2018).
No food is completely banned on the Zone diet, which includes three meals and two snacks a day. Each of these meals/snacks includes a mix of low-fat protein (e.g., skinless chicken or fish) and a small amount of healthy fat, such as avocado or olive oil. This diet recommends that bread, pasta, grains, and other starches be considered as condiments instead of main or even side dishes (Levitt & Zelman, 2018).
There are a number of benefits to the Zone diet, such as the following (Levitt & Zelman, 2018; Stoppler, 2018):
- Variety of food sources: The Zone diet offers considerable variety in comparison to other high-protein diets.
- Easy to follow: After understanding the design of this diet, it is relatively easy to adhere to.
- Frequent meals: The Zone diet recommends eating small meals and snacks throughout the day.
- Healthy fats: The Zone diet is not a low-fat diet. However, it discourages the use of saturated and trans fats and encourages the intake of healthy fats.
- Sugar management: Refined sugars are limited and the intake of whole grains, proteins, fruits, and vegetables is emphasized.
- Realistic, achievable weight loss: Most people who adhere to its guidelines can lose weight on the Zone diet. The goal of the Zone diet is a weight loss of 1–1.5 pounds per week. The National Institutes of Health (NIH) recommends a good weight-loss program, aiming for the loss of one to two pounds per week.
- Vegetarian friendly: Since the Zone diet consists of a large intake of fruits and vegetables, the Zone diet can work for vegetarians.
- Gluten-free friendly: It is easy to adapt the Zone diet to the needs of those who must eat gluten-free, since it strongly discourages eating wheat, barley, and rye products.
- Low-salt friendly: The Zone diet emphasizes the intake of fresh ingredients rather than high-sodium, processed foods. This facilitates the maintenance of a low-sodium diet.
There are also some concerns related to the Zone diet, including the following (Levitt & Zelman, 2018; Stoppler, 2018):
- Calcium intake: The Zone diet does not encourage the intake of dairy products. It can be hard to acquire adequate amounts of calcium on this diet. A number of nondairy products contain calcium, but individuals who follow the Zone diet must monitor their calcium intake carefully.
- Missing nutrients: Zone diet food restrictions can lead to insufficient intake of fiber, vitamin C, folic acid, and some minerals.
- Strict dietary balances: The Zone diet breakdown of caloric intake of 30% from fat, 30% from protein, and 40% from carbohydrates is recommended for everyone who follows the Zone diet. However, most individuals have different health needs and are in different states of health and wellness. Therefore, The Zone diet may not be appropriate for people who require a different nutritional balance to lose weight and be healthy.
- Renal risk: The Zone diet is high in protein, which can be stressful on the renal system. Such stress can be dangerous to some people with impaired renal function.
- Cost: Purchasing quantities of food recommended by the Zone diet may be costly for some people.
- Moderate to high-fat content: The fats recommended by the Zone diet are, in general, healthy fats. However, the American Heart Association warns that this diet may be too high in fat for persons who need to monitor their blood pressure and cholesterol levels.
- Calorie restrictions: Those who strictly adhere to the Zone diet will be eating less than 1,200 calories per day. This can lead to feelings of hunger and trouble adhering to the diet.
- Long-term challenges: The Zone diet may be difficult to follow for long periods of time, since it restricts a number of common foods such as rice and pasta, as well as calorie intake.
The Zone diet also recommends regular physical exercise as part of its weight-loss program. Its recommendations are closely aligned with those of the American Heart Association (Levitt & Zelman, 2018; Stoppler, 2018).
Vegetarian Diets
Sharon is the nurse manager of a large surgical unit and has a hectic work schedule. She is married and is the mother of three teenagers, who range in age from 13 to 18. One evening as she, her husband, and two of her children are preparing dinner, her 16-year-old daughter, Amy, walks in the door and apologizes for being late. She is explaining that her orchestral practice took longer than expected when she stops abruptly in the middle of a sentence. “Is that a steak you expect me to eat? The body of some harmless animal that was slaughtered? I have decided to become a vegetarian! We’ve been discussing animal rights activist activities in current events class. From now on, I will not eat meat or anything that comes from animals!” Sharon shakes her head and realizes that it is going to be a long evening. Sharon must now explain to her daughter that simply giving up meat and animal food products can have serious health consequences, unless the vegetarian diet includes adequate amounts of essential nutrients, such as calcium and protein. Becoming a vegetarian is not going to be as easy as Amy thinks it will be. Sharon will support Amy’s decision as long as she consults with the family’s health care provider and adopts a vegetarian diet that includes adequate amounts of essential nutrients.
Vegetarian diets are becoming increasingly popular. There are a number of reasons cited by vegetarian diet devotees, such as health benefits, reduction of risk for certain diseases, and the promotion of animal rights. With adequate planning, a vegetarian diet can meet the needs of people of all ages, including pregnant or breastfeeding women. The goal is to incorporate adequate amounts of recommended nutrients into the vegetarian’s daily diet (Mayo Clinic, 2019d).
What some people do not realize is that there are a number of types of vegetarian diets, each of which has certain restrictions. The important thing is to know what nutrients are required and how to get them on a vegetarian diet. Here are some types of vegetarian diets:
Lacto-Vegetarian Diet. Sharon is a senior year nursing student. She is preparing to develop a power point presentation for posting on the nursing department’s website on vegetarian diets. She is feeling a bit overwhelmed by all of the different types of vegetarian diets. Sharon decides to talk to a friend who is a vegetarian. He explains that he is a lacto-vegetarian and does not eat meat, fish, poultry, and eggs as well as foods that contain them. He does, however, consume dairy products such as milk, cheese, yogurt, and butter.
The term lacto-vegetarian is derived from the Latin word lactis, meaning milk. The lacto-vegetarian diet excludes the following foods (Link, 2019; Mayo Clinic, 2019d):
- Foods that contain meat, fish, poultry, and eggs.
In addition to fruits, vegetables, grains, soy products, and plant-based proteins, lacto-vegetarians DO eat the following (Link, 2019; Mayo Clinic, 2019c):
Consumption of dairy products is the main factor that differentiates lacto-vegetarians from vegans. However, lacto-vegetarians do not eat dairy products made with gelatin (e.g., some puddings and custards) because most gelatins contain pulverized animal hooves, bones, or marrow. They also do not eat dairy products that contain animal-based rennet, which consists of a collection of enzymes that cheese-makers generally obtain from calves (Link, 2019; Mayo Clinic, 2019d).
Some studies show that following a lacto-vegetarian diet may improve heart health and facilitate weight loss or the maintenance of a healthy weight (Link, 2019; Mayo Clinic, 2019d).
Ovo-Vegetarian Diet. An ovo-vegetarian diet excludes meat and dairy products but does include eggs. Very few people follow this type of vegetarian diet. Typically, the individuals who adopt this particular diet do so because they wanted to follow a vegetarian diet but are also lactose intolerant and cannot eat dairy products (Hill, 2019; Mayo Clinic, 2019d).
An ovo-vegetarian diet includes the following (Hill, 2019):
- Spices and fresh herbs.
- Eggs and products including eggs, such as mayonnaise, egg noodles, and some baked goods.
The following food products are excluded in the ovo-vegetarian diet (Mayo Clinic, 2019d):
Lacto-Ovo Vegetarian Diet. The lacto-ovo vegetarian diet excludes meat, fish, and poultry but does allow dairy products and eggs. This particular vegetarian diet makes it easier for its followers to meet nutrient needs than people who do not eat eggs and dairy products (Mayo Clinic, 2019d; Spiridakis, 2019).
Pescatarian Diet. Nicole’s friends know that she is a vegetarian. However, she eats fish, which offends some of her friends who exclude both meat, poultry, and fish from their diets. Mark, a friend who is not a vegetarian, asks Nicole to explain what kind of vegetarian she is. Nicole replies that she follows a pescatarian diet.
A pescatarian is someone who does not eat any meat or animal flesh with the exception of fish and seafood such as shrimp, clams, crabs, and lobster. Pescatarians also exclude eggs and dairy products from their diets (Mayo Clinic, 2019d).
Technically, a pescatarian is not a vegetarian, since a vegetarian diet excludes all animals and fish. Pescatarians often believe that consuming moderate amounts of fish or fish oils are necessary for optimum health because fish are high in omega-3 fatty acids (Hackett, 2019).
Research indicates that the pescatarian diet may increase life expectancy and may reduce the risk of heart disease, type 2 diabetes, and breast cancer (Maloney, 2019b).
There are, however, some potential dangers associated with the pescatarian diet. Fatty fish, although high in “good” fats, contain low levels of pollutants that can accumulate in the body over time. Excessive exposure to these pollutants can increase risk of cancer, diabetes, and thyroid disease. Pregnant women who consume excessive amounts of fish containing these pollutants are at risk for delivering low-birth weight infants and children who experience developmental delays (Maloney, 2019b).
Mercury is also found in fish in various amounts. Mercury is a natural element that fish process into a toxic substance (methylmercury). Intake of large amounts of mercury-containing fish can increase exposure to the toxin, which, in turn, can affect the nervous system and cause significant development delays in infants who were exposed to mercury in the womb. Recommendations for consumption depend on the type of fish being eaten. Sardines, herring, and tilapia have low amounts of mercury and can be eaten without worry. Bluefin, Chilean sea bass, and yellow fin tuna have high levels of mercury, and their consumption should be limited. (Maloney, 2019b).
Vegan Diet. Is a vegan different from being a vegetarian? A vegetarian does not eat meat, fish, or poultry. Vegans, in addition to being vegetarians, do not use other animal products and by-products including eggs, dairy products, honey, leather, fur, silk, wool, cosmetics, and soaps that are obtained from animal products. The key to adopting a vegan diet is to include a variety of foods to obtain necessary nutrients (Mayo Clinic, 2019d).
People choose to adopt a vegan lifestyle for a variety of reasons including improving their health status, protecting the environment, or ethical reasons concerning the treatment of animals. A healthy vegan diet includes fruits, vegetables, leafy greens, whole-grain products, nuts, seeds, and legumes (Mayo Clinic, 2019d).
The more restrictive the vegetarian diet, the more challenging it can be to get all necessary nutrients. A vegan diet eliminates natural food sources of vitamin B-12 and milk products, which are excellent sources of calcium (Mayo Clinic, 2019d).
Vegetarians and vegans can enjoy a healthy diet and healthy lifestyle as long as they make sure to incorporate adequate amounts of nutrients in their diets. The following are some suggestions for obtaining these nutrients (Mayo Clinic, 2019d; Petre, 2016):
- Calcium: Calcium is necessary for the development and maintenance of strong bones and teeth. Milk and dairy foods have the highest amounts of calcium. For vegetarians who do not consume milk and dairy products, dark green vegetables are good plant sources of protein when eaten in adequate amounts. Calcium-enriched and fortified products such as juices, cereals, soy milk, soy yogurt, fortified veggie meats (e.g., veggie burgers), and tofu are other good options.
- Vitamin D: Vitamin D is essential to the absorption of calcium. Vitamin D is added to some brands of soy and rice milk and some cereals and margarines. If not enough fortified foods are eaten and sun exposure is limited, a vitamin D supplement (one made from plant sources) may be necessary.
- Vitamin B12: This vitamin is necessary for the production of red blood cells and the prevention of anemia. Vegans and vegetarians can find it difficult to get enough vitamin B12 as it is found almost exclusively in animal products. Vitamin-enriched cereals, veggie meats, and soy-based beverages can be good sources of vitamin B12. However, it may be necessary to consume vitamin supplements to ensure adequate levels of vitamin B12.
Nursing Consideration: Vitamin B12 deficiency may go unnoticed in vegans since the vegan diet is rich in folate, which may conceal such a deficiency until severe problems occur (Mayo Clinic, 2019d).
- Protein: Protein is essential for the maintenance of healthy skin, bones, muscles, and organs. Eggs and dairy products are good protein sources, but vegans need to acquire protein from other sources, such as soy products, meat substitutes, legumes, lentils, nuts, seeds, and whole grains.
- Omega-3 Fatty Acids: Omega-3 fatty acids are important for a healthy cardiovascular system. Diets that exclude fish and eggs are usually low in active forms of omega-3 fatty acids. Alternative sources of essential fatty acids include canola oil, soy oil, walnuts, ground flaxseed, and soybeans. Unfortunately, conversion of plant-based omega-3 fatty acids to forms usable by people is inefficient. Therefore, vegans and vegetarians should consider fortified products or supplements, or both.
- Iron: Iron is essential for the production of red blood cells (RBCs). Sources of iron for the vegan and vegetarians include dried beans and peas, lentils, enriched cereals, whole-grain products, dark leafy green vegetables, and dried fruit. Iron is not as easily absorbed from plant sources as from animal sources. Thus, it is recommended that vegans and vegetarians eat food rich in vitamin C to help the body absorb iron. Examples of such foods include strawberries, citrus fruit, tomatoes, cabbage, and broccoli. Eat these foods at the same time as consuming iron-containing foods.
- Zinc: Zinc helps to boost immune system functioning and is important to the process of cell division and protein formation. It is found in ample amounts in soybeans, soy milk, veggie “meats,” whole grains, legumes, nuts, and wheat germ. If dairy products are consumed, cheese is also a good source of zinc.
- Iodine: Iodine is an essential component of thyroid hormones. These hormones help to regulate metabolism and the growth and functioning of critical body organs. Vegans may not get enough iodine. This puts them at risk for iodine deficiency and thyroid dysfunction. Just one fourth of a teaspoon of iodized salt per day offers a significant amount of iodine.
- Riboflavin: Riboflavin (vitamin B2) helps to convert carbohydrates into glucose. Acceptable vegan and vegetarian sources of riboflavin include almonds, fortified cereals, yogurt, mushrooms, soy milk, and vitamin B2 fortified foods.
In summary, by being alert to sources of nutrients that may not be available in vegan and vegetarian diets in sufficient quantities, it is possible to supplement these nutrients to maintain a healthy diet that provides adequate amounts of nutrients and allows vegans and vegetarians to follow their desired lifestyles and dietary choices.
Keto Diet
The ketogenic (keto) diet is a very low-carb, high-fat diet. It involves drastically reducing carbohydrate intake and replacing it with fat, which leads to ketosis. During ketosis the body becomes very efficient at burning fat for energy. Keto diets can cause large reductions in blood sugar and insulin levels. Research suggests that this diet can help in the prevention/treatment of epilepsy, cancer, and Alzheimer’s disease (Mawer, 2018).
There are some disadvantages to the keto diet. There is little evidence to show that this diet is effective or safe for the long term for anything other than epilepsy. Additionally, very low carbohydrate diets have higher rates of side effects such as constipation, headaches, and halitosis. The keto requirements can also make it a challenge to meet micronutrient needs (Mayo Clinic, 2019e).
Nursing Interventions
Nursing interventions should focus on assessment and patient/family education. Nurses have an obligation to remain objective and provide adequate information about the diets patients and families have chosen. It is essential that nurses have knowledge of various diets and be able to provide guidance regarding how to obtain adequate nutrition while following them.
Self-Assessment #7
Denise is a 30-year-old college professor. Her parents both died before the age of 60 due, in part, to cardiovascular disease and high blood pressure. Denise’s blood pressure has been gradually increasing over the past few years, and her health care provider is advising her to change her eating habits.
Which of the following diets is best for Denise to adopt, based on having the goal of preventing or reducing hypertension?
- Raw food diet.
- Gluten-free diet.
- DASH diet.
- Keto diet.
Nutritional Needs for Specific Populations
The Older Adult
Alice is studying to become a nurse practitioner. Her focus is on gerontology, a specialty she loves. Alice is especially interested in how nutritional needs change as a person ages and how nutrition can impact the older adult’s state of health and wellness.
As the body ages, it becomes less efficient at absorbing some key nutrients. The sensation of taste diminishes, leading to a decrease in appetite. Digestion becomes less efficient as well, making it difficult for the older adult’s body to digest foods. Loss of teeth or ill-fitting dentures may make it difficult for food to be chewed (Mayo Clinic, 2019f; Wolfram, 2018). It is imperative that nurses know how age affects the body’s ability to acquire adequate nutrition and to provide appropriate patient/family education regarding how diet impacts the health and wellness of the older adult.
Age-Related Changes to the Digestive Tract. Many age-related changes may occur in the digestive tract of the older adult including changes in appetite and hydration status. These changes can lead to inadequate nutritional intake (Mayo Clinic, 2019f).
Oral Health Changes. Missing or loose teeth, poorly fitting dentures, and poor dental hygiene can have an adverse impact on the older adult’s nutritional status (Mayo Clinic, 2019f).
Senses of Taste and Smell. The older adult’s senses of taste and smell (olfactory) decrease with age. Inability to smell and/or taste food interferes with the ability to enjoy meals. This can lead to a decrease in appetite, nutritional intake, and overall health status (Boltz, Capezuti, Fulmer, & Zwicker, 2016; Mayo Clinic, 2019f).
Thirst Mechanism. The thirst mechanism also diminishes with age as does the kidney’s ability to concentrate urine. These issues increase the risk for dehydration in the older adult (Boltz et al., 2016; Mayo Clinic, 2019f).
Nursing Consideration: Nurses should teach older adults and their families about the potential for dehydration and how to recognize its signs and symptoms. They should also encourage adequate fluid intake.
Vision Changes. Age-related changes in vision can make it difficult to prepare and even consume food. Problems such as cataracts and macular degeneration can exacerbate these problems and interfere with the older adult’s adequate nutritional intake (Boltz et al. 2016; Mayo Clinic, 2019f).
Changes in the Stomach. The older adult may also have to deal with a decrease or lack of hydrochloric acid production. Important nutrients such as iron and vitamin B12 must have an acid environment to begin the absorption process. Unless the body produces enough hydrochloric acid, these nutrients will not be properly absorbed and supplements may be needed (Boltz et al., 2016; Mayo Clinic, 2019f; Wolfram, 2018).
Social and Economic Issues. Older adults are often on fixed incomes. They may choose foods that are inexpensive rather than those that provide proper nutrition. Older adults may need financial assistance in order to purchase healthy foods (Boltz et al., 2016; Mayo Clinic, 2019f).
Older adults may also be affected by a lack of social interaction during mealtimes. Traditionally, mealtimes are times for social interaction with families and friends. Older adults who live alone may skip meals or eat poorly (Boltz et al., 2016; Mayo Clinic, 2019f). Nurses need to assess the older adult’s social support system when evaluating nutritional status.
Older Adults and Nutritional Deficits. There are several important nutrients that are especially likely to be missing or in low quantities in the diets of older adults. Here are the nine top nutrients to monitor for the older adult:
Vitamin B12. Vitamin B12, essential to red blood cell production and the maintenance of healthy nerve function, is one of the nutrients most often lacking in the older adult. Even if their diets contain enough vitamin B12, problems with absorption may necessitate a need for a B12 supplement. However, supplements should not be taken unless under the direction of a health care provider. Foods rich in this vitamin include eggs, milk, milk products, fish, meat, and poultry (Boltz et al., 2016; Mayo Clinic, 2019f; Wolfram, 2018).
Calcium. Calcium is essential for the formation of strong bones and teeth. Inadequate dietary calcium intake causes the body to utilize calcium from bones, leaving them brittle. This increases the risk of fractures. Older adults should consume three servings a day of low-fat milk and dairy products. Kale and broccoli and calcium-fortified juices are also good sources of calcium (Boltz et al., 2016; Mayo Clinic, 2019f; Wolfram, 2018).
Nursing Consideration: Nurses should recommend foods that have high-calcium content and are appealing to an older adult. Smoothies made with yogurt, fruit, and vegetables can be a good source of calcium for older adults. This is especially true for those older adults who have a decreased appetite, trouble chewing, or dry mouths.
Vitamin D. Vitamin D is essential for the body to absorb calcium, maintain bone density, and prevent osteoporosis. Research has associated vitamin D deficiency with an increased risk for falls. Few foods naturally contain vitamin D. Foods that do contain this vitamin include salmon, tuna, and eggs. Some cereals, milk, yogurts, and juices are fortified with vitamin D. The skin produces Vitamin D when it is exposed to sunlight (Boltz et al., 2016; Mayo Clinic, 2019f; Wolfram, 2018).
Potassium. Potassium is critical for proper body cell functioning. Many older adults do not acquire enough potassium from their daily diets. Good sources of potassium include fruits and vegetables, including bananas, prunes, plums, and potatoes with their skin. However, people should not take potassium supplements without authorization from their health care providers. Too much potassium is just as dangerous as too little (Boltz et al., 2016; Mayo Clinic, 2019f; Wolfram, 2018).
Magnesium. Magnesium plays many roles in health and wellness including immune system functioning and cardiovascular health. Magnesium absorption decreases with age. Compounding this problem is that some medications (e.g., diuretics) often taken by older adults further reduce magnesium absorption. Therefore, older adults should make sure that their diets contain foods that are good sources of magnesium, such as fresh fruits and vegetables, nuts, whole grains, beans, and seeds (Boltz et al., 2016; Mayo Clinic, 2019f).
Fiber. Fiber is necessary for the adequate functioning of the digestive process. Whole grains, beans, fruits, and vegetables are high in fiber. Nuts and beans are also good sources of fiber. Fiber supplements are also available. Older adults should consult with their health care providers about taking a fiber supplement (Boltz et al., 2016; Mayo Clinic, 2019f; Wolfram, 2018).
Water. Water, although technically not an essential nutrient like vitamins or minerals, is absolutely essential to health and wellness. As previously mentioned, older adults are at risk for becoming dehydrated because of a reduction in the thirst mechanism and taking certain types of medications, such as diuretics. Experts recommend that people consume eight glasses of fluids every day unless medically contraindicated (Boltz et al., 2016; Mayo Clinic, 2019f; Wolfram, 2018).
Nursing Consideration: Some older adults may reduce their fluid intake because of concerns about incontinence. Nurses must educate older adults and their families about the importance of adequate hydration. They can help to alleviate incontinence concerns by suggesting that older adults limit their fluid intake after the evening meal and by initiating a bladder training program as needed.
Nutritional Needs of the Cancer Patient
Nancy is undergoing chemotherapy for an aggressive type of breast cancer. She has no appetite and struggles with nausea and periods of vomiting. Her family is very concerned. They remember when Nancy’s father was receiving chemotherapy for prostate cancer; he lost a great deal of weight and had to be hospitalized in order to receive adequate nutrition. Nancy and her family consult the adult oncology nurse practitioner for advice about diet and nutrition.
Unfortunately, malnutrition is a common problem in cancer patients. It has been associated with the following (National Cancer Institute, 2019):
- Increased morbidity and mortality.
- Poor prognosis.
- Increased incidence and severity of treatment side effects.
- Increased risk of infection.
The phrase “nutrition impact symptoms” refers to symptoms that interfere with oral intake. Such symptoms include anorexia, nausea, vomiting, diarrhea, constipation, stomatitis, mucositis, dysphagia, pain, depression, anxiety, and changes in taste and smell (National Cancer Institute, 2019). Nurses must promote the early recognition and detection of malnutrition risk and nutrition impact symptoms to promote adequate nutritional intake for cancer patients.
Alterations in the sense of taste may be different among patients with a cancer diagnosis. Food may lack flavor or taste metallic. Food may also taste too sweet or too salty. Fortunately, these alterations are usually temporary. However, until then, it is important to take steps to maintain appropriate nutritional intake (Mayo Clinic, 2018i).
The Mayo Clinic has published a number of suggestions for selecting and preparing foods for patients with cancer (Mayo Clinic, 2018i):
- If the patient’s mouth or throat is sore, spices, acidic foods, and hot foods or beverages should be avoided since such foods can further irritate the mouth and throat.
- When preparing foods, different sauces and seasonings should be used to add flavor. Examples of alternative sauces and seasonings include
- ketchup;
- barbecue sauce;
- extracts;
- meat marinades;
- mustards;
- soy sauce;
- spices and herbs;
- vinegar;
- wine;
- teriyaki sauce;
- bacon bits;
- chopped green or red bell peppers, onion, or garlic;
- nuts; and
- cheese (particularly sharp cheese).
- Add sugar or syrup to foods. For example, the taste of cereal may be enhanced by the addition of brown sugar, maple, syrup, honey, cinnamon, or raisins instead of white sugar.
- Salty foods may have more taste. Cured meats and cheeses may help to stimulate appetite.
- If foods taste too sweet, the addition of a little salt or lemon juice can help. Beverages that are less sweet, such as lemonade, milk, or sports drinks, should be selected.
- If foods taste too salty, a little sugar may decrease the saltiness. Processed foods, which are high in sodium, should be avoided. When cooking, salt should not be added nor should seasonings be used that contain salt.
- If meat is properly cooked and still does not taste “right” to a patient, other foods that are high in protein may be served. Such foods include
- beans or peas,
- cheese,
- custard,
- eggs,
- eggnog,
- fish,
- instant breakfast drinks or other types of nutrition beverages,
- lentils,
- macaroni and cheese,
- milkshakes,
- nuts,
- peanut butter,
- poultry,
- pudding,
- tofu, and
Nursing Consideration: Individuals who are being treated for cancer and were previously following a special diet, such as the low-sodium or low-fat diet, may need to alter their restrictions during treatment and find ways to stimulate their appetites. Patients should talk to their health care providers about easing restrictions before doing so (Mayo Clinic, 2018i).
Nutrition During Pregnancy
A woman’s body undergoes many physical and hormonal changes during pregnancy. It is imperative that pregnant women eat a healthy, well-balanced diet to ensure their health and the health of their babies.
Most women who are pregnant can meet the increased nutritional needs of pregnancy by eating a diet that includes a variety of healthy foods.
Specific nutrients provide specific benefits. The following are examples of the benefits from different food groups (Mayo Clinic, 2019g):
- Whole grains are excellent sources of energy.
- Fruits and vegetables provide fiber, vitamins, and antioxidants.
- Meats, nuts, and legumes provide protein, folate, and iron.
- Dairy products provide calcium and (when fortified) vitamin D.
The pregnant woman’s body uses specific nutrients in specific ways for her health and the health of her baby. For example, the following are beneficial nutrients (Mayo Clinic, 2017d):
- Protein: Essential for the growth of fetal tissue and growth of the mother’s breast and uterine tissue during pregnancy.
- Calcium: Calcium is necessary for development of the baby’s bones.
- Iron: Iron increases blood flow and ensures that both mother and unborn baby are adequately oxygenated.
- Folate: Folate (folic acid) helps to decrease the risk of neural tube defects, which are major birth defects affecting the baby’s brain and spinal cord.
- Vitamin D: Vitamin D promotes bone strength and helps to build the baby’s bones and teeth.
Health care providers should be consulted before adding any supplement to a pregnant woman’s diet. Typically, a daily prenatal vitamin (ideally begun at least three months before conception) is prescribed (Mayo Clinic, 2017d).
Nutrition for Women
Good nutrition is essential for women of all ages. Diet and nutrition tips for women include the following (Help Guide, 2019):
- Calcium: Calcium is essential for healthy bones, teeth, regulation of the heart’s rhythm, and nervous system functioning. For women between the ages of 19–50, the recommended daily allowance is 1,000 mg/day. For women over 50, the recommendation is 1,200 mg/day.
- Magnesium: Magnesium increases calcium absorption from the bloodstream into the bones. The recommended daily allowance for magnesium is 320 to 400 mg/day.
- Vitamin D: Vitamin D is also necessary for proper calcium metabolism, and the daily recommended amount is 600 IU daily.
- Iron: Many women do not get enough iron. This is often because one of the best sources of iron is red meat, which many women avoid because of the high saturated fat content. Other good sources of iron include poultry, seafood, dried fruit, beans, green leafy vegetables, and fortified cereals, breads, and pastas. For women 14–18 years old, the recommended daily amount is 15 mg. For women 19–50, the recommendation is 18 mg/day. For women 51 and older, the recommendation is 8 mg.
Nutrition for Men
Typically, most men need 2,000 to 3,000 calories a day. Protein needs of men are usually based on body weight and activity levels. The recommended dietary allowance (RDA) for men is 55 grams of protein a day. Men who exercise regularly require up to 1.3 grams of protein per pound of body weight daily (Coleman, 2019).
Men should obtain 45% to 65% of their calorie intake from carbohydrates, and 20% to 35% from dietary fat. Men who eat 2,500 calories a day should aim for 281 to 406 grams of carbohydrates and 56 to 97 grams of fat. Healthy high-carbohydrate foods are vegetables, fruits, whole grains, low-fat milk, nuts, seeds, and legumes. Healthy fats should be obtained from plant-based oils, fish oils, nuts, seeds, olives, and avocados (Coleman, 2019).
Following a well-balanced meal plan generally provides appropriate amounts of vitamins and vegetables. However, (especially as one ages) health care providers should be consulted about adding any necessary supplements to their diets (Coleman, 2019).
Nutrition for People with Heart Disease
The American Heart Association points out that adopting a healthy diet and lifestyle are the best ways to combat cardiovascular disease (American Heart Association, 2019b).
The American Heart Association makes the following diet and lifestyle recommendations to prevent or limit the extent of cardiovascular disease (American Heart Association, 2019b):
- Use up at least as many calories as are taken in.
- Strive for at least 150 minutes of moderate physical activity or 75 minutes of vigorous physical activity (or a combination of both) every week.
- Adopt a healthy dietary pattern that includes the following:
- A wide variety of fruits and vegetables.
- Whole grains.
- Low-fat dairy products.
- Skinless poultry and fish.
- Nuts and legumes.
- Non-tropical vegetable oils.
- Limit saturated fat, trans fat, sodium, red meat, sweets, and sugar-sweetened beverages.
- Limit intake of foods that are high calorie, high fat, and/or low in nutrition.
- Limit foods that are high in sodium.
- Drink alcohol only in moderation. This means no more than one drink per day for women and no more than two drinks per day for men.
- Do not smoke.
- Avoid second-hand smoke.
Nutrition for People with Chronic Obstructive Pulmonary Disease (COPD)
People who have COPD need more energy to breathe than those without lung disease. The muscles they use during respiration can require up to 10 times more calories than those of people without COPD (Cleveland Clinic, 2018).
The Cleveland Clinic makes the following recommendations regarding nutritional guidelines for people living with COPD (Cleveland Clinic, 2018):
- Monitor weight at least once a week unless told by health care providers to do so more often. Individuals with COPD who take diuretics or steroids should weigh themselves every day.
- Drink at least six to eight eight-ounce glasses of caffeine-free beverages every day. Some people may be on fluid restrictions due to other health conditions. Therefore, it is wise to consult with health care providers about fluid intake.
- Limit caffeine.
- Incorporate high-fiber foods into the diet. The goal is to consume about 20 to 35 grams of fiber every day.
- Limit sodium intake. Use herbs and spices as food flavoring. Do not have the salt shaker on the table, and do not add salt when cooking. Check with health care providers before using salt substitutes, which can contain other ingredients that may be harmful.
- Avoid foods and beverages that cause gas and bloating, which can make breathing difficult. Examples of such foods and beverages include carbonated beverages, fried or greasy foods, heavily spiced foods, apples, beans, and peppers. Many fruits and vegetables can cause gas but are part of a healthy diet. Consult health care providers regarding foods that can cause gas and bloating.
The Cleveland Clinic also offers the following tips for persons with COPD who are short of breath while eating or immediately after eating (Cleveland Clinic, 2018):
- Clear airways at least one hour prior to eating.
- Eat slowly.
- Take smalls bites and chew foods thoroughly and slowly. Breathe deeply while eating.
- Choose easily chewed foods.
- Eat five or six small meals rather than three large ones.
- Drink liquids at the end of meals rather than during meals. Drinking during meals may increase feelings of fullness and feeling bloated.
- Sit up to eat.
- Use pursed lip breathing.
Nutritional Needs of People with Gout
Gout is a painful type of arthritis that occurs when high levels of uric acid in the blood cause crystals to form and accumulate around a joint (Mayo Clinic, 2018j). Gout can affect any joint, but most often affects those in the feet and legs. Attacks of gout follow an intermittent course and can leave patients free from symptoms for years between such attacks. Gout can lead to chronic disability or incapacitation. However, prognosis is good with treatment (Gersch, Heimgartner, Rebar, & Willis, 2017).
Part of the treatment for gout includes some dietary restrictions and modifications. These include the following (Gersch et al., 2017; Mayo Clinic, 2018j):
- Lose weight if overweight or obese, which can increase the risk of developing gout. Losing weight lowers uric acid levels and reduces the number of attacks of gout.
- Eat more complex carbohydrates, such as fruits, vegetables, and whole grains.
- Avoid foods such as white bread, cakes, candy, sugar-sweetened beverages, and products with high-fructose corn syrup.
- Stay hydrated. Research suggests that an increase in water consumption is associated with fewer attacks of gout. It is suggested that people drink 8–16 glasses of fluids every day with at least half of this amount as water.
- Reduce the amount of saturated fats consumed from red meat, fatty poultry, and high-fat dairy products.
- Limit daily proteins from lean meat, fish, and poultry to 4–6 ounces.
- Add protein sources, such as low-fat or fat-free dairy products. These are linked to reduced uric acid levels.
- Allow high-purine vegetables to be part of the diet, including asparagus, mushrooms, spinach, peas, and cauliflower. Once thought that such foods increased the risk of gout or the number of attacks, research now shows that this is not accurate. A healthy diet includes a variety of lots of fruits and vegetables and can include high-purine fruit and vegetables products.
- Avoid organ and glandular meats, such as liver and kidneys, which can contribute to high blood uric acid levels.
- Avoid seafood that is high in urines, such as anchovies, herring, sardines, mussels, scallops, trout, haddock, mackerel, and tuna.
- Review alcohol intake. Alcohol metabolism is believed to increase the production of uric acid and contribute to the risk of dehydration. Beer is linked to an increased risk of gout and the number of gout attacks as are distilled liquors to some extent. Discuss alcohol intake with health care providers.
- Consider taking a vitamin C supplement. Vitamin C may help to reduce uric acid levels. Discuss the helpfulness of adding a vitamin C supplement to the diet.
- Consider drinking coffee in moderate amounts. The results of some studies suggest that moderate coffee consumption (especially coffee with caffeine) may reduce the risk of gout. Discuss coffee consumption with health care providers.
- Consider eating cherries. There is some indication from research results that eating cherries is associated with a reduced risk of gout attacks.
Nutritional Needs for People with Compromised Immune Systems
Various health problems, such as cancer and HIV/AIDS, can weaken the body’s immune system. The American Cancer Society offers the following recommendations when preparing foods and grocery shopping to avoid possible foodborne illnesses, which can be devastating for people with weakened immune systems (American Cancer Society, 2019):
- Handle food carefully by taking the following actions:
- Wash hands with warm water and soap for at least 20 seconds before and after preparing food and before eating.
- Refrigerate foods at or below 40 degrees Fahrenheit.
- Thaw meat, fish, or poultry in the microwave or refrigerator. Place thawing foods in dishes to catch possibly contaminated drippings. Do not thaw foods at room temperature.
- Use defrosted foods promptly.
- Do not refreeze foods.
- Refrigerate perishable foods within two hours of buying them or preparing them. Dishes with eggs, cream, and/or mayonnaise should not be left unrefrigerated for more than one hour.
- Wash fruits and vegetables thoroughly under running water before peeling or cutting them.
- Rinse the leaves of leafy vegetables under running water one leaf at a time.
- Do not consume raw vegetable sprouts.
- Discard fruits or vegetables that have mold or appear to be slimy.
- Do not buy produce that has been cut at the grocery store.
- Wash the tops of canned foods with soap and water before opening.
- Use different utensils for stirring and tasting foods.
- Throw away eggs with cracked shells and foods that look strange or have a strange odor.
- Avoid cross-contamination by following these suggestions:
- Using a clean knife to cut different foods.
- Store raw meats by tightly sealing them and placing them away from ready-to-eat foods.
- Use separate cutting boards for cooked and raw foods.
- Carefully clean counters and cutting boards with hot, soapy water or disinfecting wipes that can be used around food products.
- When cooking or buying food, take the following steps:
- Cook meats to a temperature of 160 degrees Fahrenheit. Use a meat thermometer to accurately measure temperature.
- Cook poultry to 180 degrees Fahrenheit. Use a meat thermometer for accurate temperature measurement.
- Check expiration dates on all food before buying them. Purchase only the freshest food products.
- Never buy products that are outdated.
- Never purchase damaged, swollen, rusted, or deeply dented cans.
- Avoid eating deli foods.
- Avoid purchasing cream or custard-containing products sold in unrefrigerated areas.
- Avoid eating yogurt and ice cream from self-serve machines.
- When eating out, people with compromised immune systems should do the following:
- Eat early to avoid crowds.
- Ask for freshly prepared foods at fast food restaurants.
- Avoid self-serve condiment containers.
- Avoid eating from sources thought to be high risk, such as buffets, potlucks, salad bars, and sidewalk vendors.
- Make sure that utensils are set on a napkin or clean tablecloth or clean placemat instead of directly on the table.
- When taking home leftovers, ask for a container and put the food in yourself. Do not allow the server to take food to the kitchen to box the food.
Nutrition for People with Irritable Bowel Syndrome (IBS)
Irritable bowel syndrome (also referred to as spastic colon and spastic colitis) is a common health problem. It is characterized by chronic or periodic episodes of diarrhea and moderate to severe abdominal cramping. The episodes of diarrhea may alternate with constipation. Treatment is generally supportive and focuses on avoiding foods that trigger the problem and controlling or avoiding emotional stress, which can exacerbate the condition (Gersch et al., 2017).
The goals of treatment are to relieve symptoms, identify triggers, and investigate stress reduction strategies (Gersch et al., 2017).
The National Institute of Diabetes and Digestive and Kidney Diseases has published the following recommendations regarding dietary changes that can help relieve the symptoms of IBS (National Institute of Diabetes and Digestive and Kidney Diseases, 2017):
- Increase fiber intake: Fiber may help to improve constipation since it helps to soften stool and facilitate bowel movements. Soluble fiber (found in beans, fruit, and oat products) is thought to be more helpful in IBS symptom relief than insoluble fiber (found in whole-grain products and vegetables). Fiber should be added to the diet gradually to allow the body to assimilate.
- Avoid gluten: Gluten is a protein found in wheat, barley, and rye. Foods that contain gluten include most cereals, grains, pasta, and many processed foods. Health care providers may recommend that gluten be removed from the diet to see if IBS symptoms improve.
- Eat a low FODMAP diet: Health care providers may suggest trying the FODMAP diet. This diet requires that certain foods are avoided or eaten in smaller amounts. These foods are generally carbohydrates called FODMAPS. Examples of these foods include the following:
- Fruits such as apples, apricots, cherries, nectarines, pears, plums, and watermelon.
- Canned fruit in natural fruit juice, or large amounts of fruit juice or dried fruit.
- Vegetables such as artichokes, asparagus, cauliflower, garlic, onions, and mushrooms.
- Dairy products such as milk, milk products, soft cheeses, yogurt, custard, and ice cream.
- Wheat and rye products.
- Honey and foods with high-fructose corn syrup.
- Products such as candy and gum and sweeteners ending in “ol” such as sorbitol, mannitol, and maltitol.
Nutrition for People with Inflammatory Bowel Disease
Stephanie is undergoing a number of diagnostic tests as part of an evaluation for periodic attacks of bloody diarrhea, which also contains pus and mucus. She also experiences abdominal pain, anorexia, weakness, nausea, and weight loss. The results of a sigmoidoscopy and colonoscopy confirm a diagnosis of ulcerative colitis.
Mark visits his family physician complaining of weakness and fatigue that is accompanied by right lower quadrant abdominal pain, diarrhea with an average of six stools per day, and weight loss. Sometimes his stools are bloody. Stool studies show that his feces contain excessive amounts of fat (steatorrhea). There is no indication of parasites or infectious agents in his stools. A barium enema shows the characteristic string sign (marked narrowing of the bowel) of Crohn’s disease.
Inflammatory bowel disease (IBD) is a general term used to refer to two separate diseases, Crohn’s disease and ulcerative colitis. Crohn’s disease is a chronic inflammatory disease that can affect any part of the digestive tract. Inflammation can affect the entire intestinal wall leading to diarrhea, strictures, fistulas, malabsorption, and the need for surgical restrictions Mayo Clinic, 2017e).
Ulcerative colitis is an inflammatory disease of the colon. It is often accompanied by diarrhea. The inflammation caused by ulcerative colitis does not affect the entire intestinal wall, so it does not lead to the development of fistulas. Unfortunately, if the inflammation is extensive, it may ultimately lead to surgical removal of the affected area (Mayo Clinic, 2017e).
No specific diet has been identified that treats or prevents inflammatory bowel disease. There are, however, some dietary recommendations that may help to control symptoms (Mayo Clinic, 2017e; UCSF Health, 2017).
Ulcerative Colitis. During an ulcerative colitis flare up, these dietary recommendations may help to control symptoms (Mayo Clinic, 2017e; UCSF Health, 2017):
- Follow a low-residue diet (limit foods that are high in fiber and increase bowel activity).
- Avoid foods that increase the amount of stool production, such as fresh fruits and vegetables, prunes, and beverages that contain caffeine.
- Decrease the amount of concentrated sweets that are eaten. These types of foods draw water into the intestine, which may lead to watery stools.
- Decrease the amount of alcohol that is ingested.
- Eat more omega-3 fatty acids, which may have an anti-inflammatory effect.
- Eat smaller, more frequent meals rather than three large meals. This type of eating pattern is often better tolerated.
- Discuss the need for nutritional supplements with health care providers. Their use may be indicated if appetite is poor and nutritional intake is decreased.
Crohn’s Disease. During a flare up of Crohn’s disease, the following recommendations may help to control symptoms (Gersch et al., 2017, Mayo Clinic, 2017e; UCSF, 2017):
- Follow a low-residue diet.
- Avoid nuts, seeds, beans, and kernels. This is especially important if strictures are present.
- Avoid high-fiber foods, such as fresh fruits and vegetables, prunes, and beverages that contain caffeine. These kinds of foods and vegetables increase the amount of stool produced.
- Consider eating cold foods since these may help reduce bouts of diarrhea.
- Adhere to a lactose-free diet if lactose intolerant.
- Be alert to signs of fat malabsorption, which is characterized by oily and foul-smelling stools. People with this problem should follow a low-fat diet and discuss the problem with their health care providers.
A low-residue diet should be followed since a variety of foods should only slowly be reintroduced into the dietary pattern. Examples of foods to be initially reintroduced include diluted juices, applesauce, canned fruit, oatmeal, plain chicken, turkey or fish, mashed potatoes, rice or noodles, and bread (sourdough or white). Fiber should be added to the diet gradually as tolerated (Gersch et al., 2017; Mayo Clinic, 2017e; UCSF, 2017):
Nursing Consideration: Corticosteroids have often been used to treat moderate to severe flares of inflammatory bowel disease. These medications can decrease calcium and phosphorus absorption and increase protein needs (Gersch et al., 2017; Mayo Clinic, 2017e; UCSF, 2017). Nurses must be aware of how medications influence diet for persons with inflammatory bowel disease.
There are some nutritional deficiencies specific to each type of inflammatory bowel disease (Gersch et al., 2017; Mayo Clinic, 2017e; UCSF, 2017).
Patients who have ulcerative colitis may have increased needs for the following nutrients (Gersch et al., 2017; Mayo Clinic, 2017e; UCSF, 2017):
It is imperative that patients discuss the need for nutritional supplements with their health care providers.
Patients who have Crohn’s disease may be at risk for deficiencies of the following nutrients (Gersch et al., 2017; Mayo Clinic, 2017e; UCSF, 2017):
- Vitamin B12.
- Vitamins D, E, and K.
- Vitamin A.
Patients, families, and health care providers should discuss the need for nutritional supplements to combat potential or actual deficiencies.
Nursing Interventions
Nurses have considerable responsibilities when it comes to knowing how to facilitate acquisition of proper nutrition for patients with various health problems. They need to educate patients and families regarding how nutritional needs are affected by disease processes. They must also be able to help patients and families establish dietary patterns that meet their nutritional needs.
Self-Assessment #8
Kate is a 25-year-old graphics designer. For the past year, she has been troubled by recurrent bouts of lower abdominal pain and diarrhea; the periods of pain and diarrhea alternate with periods of normal bowel functioning. Kate notices that she is more likely to suffer from these symptoms during periods of emotional stress and after eating particular foods, such as raw peppers or drinking unusually large amounts of caffeine containing beverages. She undergoes a number of diagnostic tests, including a colonoscopy. Inflammatory bowel disease, celiac disease, diverticulitis, lactose intolerance, and colon cancer have been ruled out. A differential diagnosis of irritable bowel syndrome is made.
- When evaluating Karen’s state of health, health care professionals recognize all of the following EXCEPT
- IBS is characterized by periodic episodes of diarrhea that may alternate with constipation.
- patients are advised to increase their fiber intake.
- proper administration of corticosteroids can lead to a cure for IBS.
- emotional stress can exacerbate IBS.
Self-Assessment #9
A nurse practitioner is working with a patient to enhance his nutritional status. This patient has COPD.
- Nursing interventions to help the patient with COPD improve their nutritional status include which one of the following?
- Telling patients who are taking diuretics that they should weigh themselves on a weekly basis.
- Drink 6 to 8 glasses of beverages with caffeine to help increase energy levels.
- Increase sodium intake to stimulate the sense of taste.
- Consume about 20 to 35 grams of fiber every day.
Intent to Change Practice
There are numerous indications for practice changes in the way nurses and other healthcare professionals can enhance nutritional health. Ways to do this include the following:
- Be sure to stay up-to-date regarding nutritional recommendations, how nutrition affects health and wellness, and how to appropriately counsel patients regarding nutrition.
- Incorporate nutritional guidance into every plan of patient care.
- Make nutrition an interdisciplinary team effort to help patients improve their nutritional status.
Self-Assessment #10
A nurse is considering practice changes after participating in a course about nutrition. She wants to use knowledge gained to improve patient outcomes.
- It is appropriate for a nurse to change practice in all of the following ways EXCEPT
- use knowledge from current education resources to improve patient outcomes.
- incorporate nutritional guidance in patients who are overtly malnourished.
- make sure that nutrition improvement is an interdisciplinary effort.
- improve nutritional counseling.
Summary
Meeting nutritional needs is often a complex process. These needs vary depending on gender, age, and health status. Nurses must be sure to include nutritional assessment as part of all of their physical and emotional assessments. They must also explore how nutritional needs are affected by changes in health status and how to help patients adjust to necessary changes in their diets based on such changes.
References
American Cancer Society. (2019). Food safety during cancer treatment. Retrieved from http://www.cancer.org/content/cancer/en/treatment/survivorship-during-and-after- treatment/staying-active/nutrition/weak-immune-system.html
American Heart Association. (2017). Losing weight and getting healthier. Retrieved from http://www.heart.org/HEARTORG/HealthyLiving/WeightManagement/Obesity/Losing- Weight-and-Getting-Healthier_UCM_447778_Article.jsp
American Heart Association. (2019a). Losing weight. Retrieved from https://www.heart.org/en/healthy-living/healthy-eating/losing-weight#.V8tucigrLIU
American Heart Association. (2019b). The American Heart Association: Diet and lifestyle recommendations. Retrieved from https://www.heart.org/en/healthy-living/healthy- eating/eat-smart/nutrition-basics/aha-diet-and-lifestyle-recommendations
American Psychological Association. (2013). Diagnostic and statistical manual of mental disorders (DSM-5) (5th ed.). Washington, DC: American Psychological Association.
Asay, S. (2019). DASH eating plan makes dieting less daunting. Retrieved from https://www.bistromd.com/diet-solutions/health-benefits-of-the-dash-diet
Avillion, A. E. (2015). Nursing professional development: A practical guide for evidence-based education. Danvers, MASS: HCPro.
Boltz, M., Capezuti, E., Fulmer, T., & Zwicker, D. (Eds). (2016). Evidence-based geriatric nursing protocols for best practice (5th ed.). New York, NY: Springer.
Centers for Disease Control and Prevention (CDC). (2017). Heart disease in the United States. Retrieved from https://www.cdc.gov/heartdisease/facts.htm
Centers for Disease Control and Prevention (CDC). (2018a). Overweight and obesity: Adult obesity facts. Retrieved from https://www.cdc.gov/obesity/data/adult.html
Centers for Disease Control and Prevention (CDC). (2018b). National diabetes statistics report. Retrieved from https://www.cdc.gov/diabetes/data/statistics/statistics-report.html
Centers for Disease Control and Prevention (CDC). (2019a). Overweight and obesity: Childhood obesity facts. Retrieved from https://www.cdc.gov/obesity/data/childhood.html
Cleveland Clinic. (2018). Nutritional guidelines for people with COPD. Retrieved from https://my.clevelandclinic.org/health/articles/9451-nutritional-guidelines-for-people-with- copd
Cleveland Clinic. (2019). Obesity & heart disease. Retrieved from https://my.clevelandclinic.org/health/articles/17308-obesity--heart-disease
Coleman, E. (2019). Men’s daily nutritional requirements. Retrieved from https://www.livestrong.com/article/503798-mens-daily-nutritional-requirements/
Collingwood, J. (2018). Obesity and mental health. Retrieved from https://psychcentral.com/lib/obesity-and-mental-health/?all=1
Comerford, K.C., & Durkin, M.T. (Eds). (2020). Nursing 2020 drug handbook. Philadelphia, PA: Wolters Kluwer.
Dairy Council of California. (2019). My Plate. Retrieved from https://www.healthyeating.org/Health-Wellness-Providers/Nutrition-Information/MyPlate
Davis, C., & Saltos, E. (n.d.). Dietary recommendations and how they have changed over time. Retrieved from https://www.ers.usda.gov/webdocs/publications/42215/5831_aib750b_1_.pdf
Diabetes.co.uk. (2019). Diabetes and obesity. Retrieved from https://www.diabetes.co.uk/diabetes-and-obesity.html.
Dixon, A.E., & Peters, U. (2018). The effect of obesity on lung function. Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/30056777
Galanis, N. (2018). The risking incidence of gout; Is obesity to blame? Nutrition & Food Science, 5(3). Retrieved from https://www.webmd.com/diet/obesity/obesity-health- risks#2. DOI: 1019080/NFSI/201805.555663
Gersch, C., Heimgartner N. M., Rebar, C. R., & Willis, L. M. (Eds.). (2017). Medical-surgical nursing made incredibly easy. (4th ed.). Philadelphia, PA: Wolters Kluwer.
Hackett, J. (2019). What is a pescatarian? Retrieved from https://www.thespruceeats.com/what- is-a-pescatarian-3376817
Harvard Health Publications Harvard Medical School. (2017). Comparison of the healthy eating plate and the USDA’s MyPlate. Retrieved from http://www.health.harvard.edu/plate/comparison-of-healthy-eating-plate-and-usda- myplate
Health Agenda Nutrition. (2017). What are whole foods? Retrieved from https://www.hcf.com.au/health-agenda/food-diet/nutrition/what-are-wholefoods
Health.gov. (2015). Chapter 2 Shifts needed to align with healthy eating patterns. Retrieved from https://health.gov/dietaryguidelines/2015/guidelines/chapter- 2/current-eating- patterns-in-the-united-states/#figure-2-1
Health.gov. (2016a). Dietary guidelines for Americans: 2015–2020 (8th ed.). Retrieved from https://health.gov/dietaryguidelines/2015/resources/DGA_Recommendations-At-A- Glance.pdf
Health.gov. (2016b). Key elements of healthy eating patterns. Healthy eating patterns: Dietary principles. Retrieved from https://health.gov/dietaryguidelines/2015/guidelines/chapter- 1/healthy-eating-patterns/
HHS.gov. (2017). Facts and statistics. Retrieved from https://www.hhs.gov/fitness/resource- center/facts-and-statistics/index.html
Healthchildren.org. (2017). The emotional toll of obesity. Retrieved from https://www.healthychildren.org/English/health-issues/conditions/obesity/Pages/The- Emotional-Toll-of-Obesity.aspx
Help Guide. (2019). Diet and nutrition tips for women. Retrieved from https://www.helpguide.org/articles/healthy-eating/diet-and-nutrition-tips-for-women.htm
Hill, A. (2019). Ovo-vegetarian diet: A complete guide and meal plan. Retrieved from https://www.healthline.com/nutrition/ovo-vegetarian-diet
Jones, B. C. (2013). Whole foods vs. processed foods: Why less is actually better. Retrieved from http://foodandnutrition.org/blogs/stone-soup/whole-foods-vs-processed-foods-less- actually-better/
Kelley, C. P., Sbrocco, G., & Sbrocco, T. (2016). Behavioral modification for the management of obesity. Primary Care: Clinics in Office Practice, 43(1), 159–175. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4772897/
Lawler, M. (2019). What is protein? How much you need, benefits, sources, more. Retrieved from https://www.everydayhealth.com/diet-nutrition/protein-how-much-you-need- benefits-sources-more/
Levitt, S., & Zelman, K. M. (2018). The Zone Diet. Retrieved from https://www.webmd.com/diet/a-z/zone-what-it-is
Link, R. (2019). Lacto-vegetarian diet: Benefits, foods to eat, and meal plan. Retrieved from https://www.healthline.com/nutrition/lacto-vegetarian-diet
Malfort, T.T., Rufino, R., Costa, C. H., & Lopes, A. J. (2016). Obesity: systemic and pulmonary complications biochemical abnormalities, and impairment of lung function. Multidisciplinary Respiratory Medicine, 11(28). Retrieved from https://mrmjournal.biomedcentral.com/articles/10.1186/s40248-016-0066-z
Maloney, L. (2019a). Advantages and disadvantages of organic foods. Retrieved from https://www.livestrong.com/article/442122-advantages-disadvantages-of-organic-foods/
Maloney, L. (2019b). Disadvantages of a pescatarian diet. Retrieved from https://www.livestrong.com/article/399500-the-disadvantages-of-a-pescetarian-diet/
Mawer, R. (2018). The ketogenic diet: A detailed beginner’s guide to keto. Retrieved from https://www.healthline.com/nutrition/ketogenic-diet-101
Mayo Clinic. (2017a). Nutrition and healthy eating: Carbohydrates: How carbs fit into a healthy diet. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/nutrition-and- healthy-eating/in-depth/carbohydrates/art-20045705?pg=2
Mayo Clinic. (2017b). Nutrition and healthy eating. Paleo diet: What is it and why is it so popular? Retrieved from https://www.mayoclinic.org/healthy-lifestyle/nutrition-and- healthy-eating/in-depth/paleo-diet/art-20111182
Mayo Clinic. (2017c). Nutrition and healthy eating. Gluten-free diet. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in- depth/gluten-free-diet/art-20048530
Mayo Clinic. (2017d). Pregnancy week by week. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in- depth/pregnancy-nutrition/art-20045082
Mayo Clinic. (2017e). Inflammatory bowel disease (IBD). Retrieved from https://www.mayoclinic.org/diseases-conditions/inflammatory-bowel-disease/symptoms- causes/syc-20353315
Mayo Clinic. (2018a). Pregnancy week by week. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in- depth/pregnancy-and-obesity/art-20044409
Mayo Clinic. (2018b). Anorexia nervosa: Overview. Retrieved from https://www.mayoclinic.org/diseases-conditions/anorexia-nervosa/symptoms-causes/syc- 20353591
Mayo Clinic. (2018c). Anorexia nervosa: Diagnosis and treatment. Retrieved from https://www.mayoclinic.org/diseases-conditions/anorexia-nervosa/diagnosis- treatment/drc-20353597
Mayo Clinic. (2018d). Bulimia nervosa: Overview. Retrieved from https://www.mayoclinic.org/diseases-conditions/bulimia/symptoms-causes/syc- 20353615
Mayo Clinic. (2018e). Bulimia nervosa: Diagnosis and treatment. Retrieved from https://www.mayoclinic.org/diseases-conditions/bulimia/diagnosis-treatment/drc- 20353621
Mayo Clinic. (2018f). Binge-eating disorder: Overview. Retrieved from https://www.mayoclinic.org/diseases-conditions/binge-eating-disorder/symptoms- causes/syc-20353627
Mayo Clinic. (2018g). Organic foods: Are they safer? More nutritious? Retrieved from https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in- depth/organic-food/art-20043880
Mayo Clinic. (2018h). Nutrition and healthy eating. Dietary fiber: Essential for a healthy diet. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy- eating/in-depth/fiber/art-20043983
Mayo Clinic. (2018i). Eating during cancer treatment: Tips to make food tastier. Retrieved from https://www.mayoclinic.org/diseases-conditions/cancer/in-depth/cancer/art-20047536
Mayo Clinic. (2018j). Gout diet: What’s allowed, what’s not. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/gout- diet/art-20048524
Mayo Clinic. (2019a). Nutrition and healthy eating. Mediterranean diet: A heart-healthy eating plan. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy- eating/in-depth/mediterranean-diet/art-20047801
Mayo Clinic. (2019b). Red wine and resveratrol: Good for your heart? Retrieved from https://www.mayoclinic.org/diseases-conditions/heart-disease/in-depth/red-wine
Mayo Clinic. (2019c). Nutrition and healthy eating. DASH diet: Healthy eating to lower your blood pressure. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/dash-diet/art-20048456
Mayo Clinic. (2019d). Vegetarian diet: How to get the best nutrition. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in- depth/vegetarian-diet/art-20046446
Mayo Clinic. (2019e). The truth behind the most popular diet trends of the moment. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/weight-loss/in-depth/the-truth-behind- the-most-popular-diet-trends-of-the-moment/art-20390062
Mayo Clinic. (2019f). Senior health: How to prevent and detect malnutrition. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/caregivers/in-depth/senior-health/art- 20044699
Mayo Clinic. (2019g). Pregnancy nutrition: Healthy-eating basics. Retrieved from https://www.mayoclinic.org/healthy-lifestyle/pregnancy-week-by-week/in- depth/pregnancy-nutrition/art-20046955
McMillen, M. (2018). The Paleo Diet. Retrieved from https://www.webmd.com/diet/a-z/paleo- diet
Medline Plus. (2019). Vitamins. Retrieved from https://medlineplus.gov/ency/article/002399.htm
Messina, M. (2016). Soy and health update: Evaluation of the clinical and epidemiologic literature. Nutrients, (9(12) 754. DOI: 10.3390/nu8120754. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5188409/
Mission Health. (2018). What are you putting in your body? The difference between whole and processed foods. Retrieved from https://blog.mission-health.org/2018/07/26/whole- processed-foods-health/
National Cancer Institute. (n.d.). Obesity and cancer. Retrieved from https://www.cancer.gov/about-cancer/causes-prevention/risk/obesity/obesity-fact- sheet#r23
National Cancer Institute. (2019). Nutrition in cancer care (PDQ®) Health professional version. Retrieved from https://www.cancer.gov/about-cancer/treatment/side-effects/appetite- loss/nutrition-hp-pdq
National Center for Complementary and Integrative Health (NCCIH). (2016). Antioxidants: In Depth. Retrieved from https://nccih.nih.gov/health/antioxidants/introduction.htm
The National Institute of Diabetes and Digestive and Kidney Diseases. (2017). Eating, diet, & nutrition for irritable bowel syndrome. Retrieved from https://www.niddk.nih.gov/health- information/digestive-diseases/irritable-bowel-syndrome/eating-diet-nutrition
Institute of Health (NIH) Osteoporosis and Related Bone Diseases National Resource Center. (2018). Calcium and vitamin D: Important at every age. Retrieved from https://www.bones.nih.gov/health-info/bone/bone-health/nutrition/calcium-and-vitamin-d-important-every-age
New York Times. (2011). Nutrition plate unveiled, replacing food pyramid. Retrieved from http://www.nytimes.com/2011/06/03/business/03plate.html?_r=0
Obesity Medicine Association. (2019). Obesity and obstructive sleep apnea. Retrieved from https://obesitymedicine.org/obesity-and-sleep-apnea/
O’Neil, E. (2019). What is adult learning theory? Retrieved from https://www.learnupon.com/blog/adult-learning-theory/
Petre, A. (2016). 11 foods healthy vegans eat. Retrieved from https://www.healthline.com/nutrition/foods-vegans-eat
Robinson, K. M. (2019). Raw foods diet. Retrieved from https://www.webmd.com/diet/a-z/raw- foods-diet
Schwingshackl, L., Schwedhelm, C., Galbete, C., & Hoffmann, G. (2017). Adherence to Mediterranean Diet and risk of cancer: An updated systematic and meta-analysis. Nutrients, 9(10), 1063. DOI: 10.3390/nu910063. Retrieved from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5691680/
Shan, Z., Rehm, C. D., Rogers, G., Ruan, M., Wang, D., Hu, F. B., M. … Bhupathiraju, S. N. (2019). Trends in dietary carbohydrate, protein, and fat intake and diet quality among US adults, 1999–2016. The Journal of the American Medical Association (JAMA), 322(12), 1178–1187. DOI: 10.1001/jama.2019.13771
Spiridakis, N. (2019). Lacto-ovo vegetarian meal plans. Retrieved from https://www.livestrong.com/article/353025-lacto-ovo-vegetarian-meal-plans/
Stoppler, M. C. (2018). Medical definition of Zone Diet. Retrieved from https://www.medicinenet.com/script/main/art.asp?articlekey=64062
UCSF Health. (2017). Nutrition tips for inflammatory bowel disease. Retrieved from https://www.ucsfhealth.org/education/nutrition-tips-for-inflammatory-bowel-disease
United States (U.S.) Department of Agriculture. (n.d.). Agency history. Retrieved from https://www.fsa.usda.gov/about-fsa/history-and-mission/agency-history/index
Videbeck, S. L. (2017). Psychiatric-mental health nursing (7th ed.). Philadelphia, PA: Wolters Kluwer.
WebMD. (2019a). Binge eating disorder. Retrieved from https://www.webmd.com/mental- health/eating-disorders/binge-eating-disorder/binge-eating-disorder-medref#1
WebMD. (2019b). Health benefits of soy. Retrieved from https://www.webmd.com/diet/ss/slideshow-soy-health-benefits
WebMD. (2019c). What types of fat are in food? Retrieved from https://www.webmd.com/diet/guide/types-fat-in-foods#1
WebMD. (2018a). Health risks linked to obesity. Retrieved from https://www.webmd.com/diet/obesity/obesity-health-risks#2
WebMD. (2018b). Causes of obstructive sleep apnea. Retrieved from https://www.webmd.com/sleep-disorders/sleep-apnea/obstructive-sleep-apnea-causes#1.
WebMD. (2018c). Phytonutrients. Retrieved from https://www.webmd.com/diet/guide/phytonutrients-faq#1
WebMD. (2018d). Food sources of vitamins and minerals. Retrieved from https://www.webmd.com/food-recipes/vitamin-mineral-sources#
Wolfram, T. (2018). Special nutrient needs of older adults. Retrieved from https://www.eatright.org/health/wellness/healthy-aging/special-nutrient-needs-of-older- adults
World Health Organization (WHO). (2018). Obesity and overweight. Retrieved from https://www.who.int/news-room/fact-sheets/detail/obesity-and-overweight
Zdziarski, L, A,, Wasser, J. G., & Vincent, H. K. 2015). Chronic pain management in the obese patient: A focused review of key challenges and potential exercise solutions. Retrieved from http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4332294/
Self-assessment Answers and Rationales
- The correct choice is a. Americans consume more than the recommended amounts of sodium in their diets. They should eat less saturated fats and increase the amount of whole grains that they eat. From 1999–2016, there were significant increases of consumption of plant products.
- The correct choice is c. Obesity has been linked to the development of a number of cancers, including breast cancers. The ideal goal for weekly weight loss is one to two pounds per week. To reduce symptoms of obstructive sleep apnea people should lose 10% of their body weight.
- The correct choice is d. Family therapy is the only evidence-based therapy for anorexia nervosa.
- The correct answer is c. Persons who have bulimia nervosa are usually of normal weight. They are, however, desperate to lose weight and feel that they have no control over binging and purging behaviors.
- The correct answer is b. Organic foods are usually more expensive than conventional foods because, in part, the farming practices used are more expensive.
- The correct answer is a. Vitamin A is important for vision, healthy skin and mucous membranes, growth of bones and teeth, and a healthy immune system. Vitamin D is necessary for calcium absorption. Folic acid is water-soluble, not fat-soluble. Niacin is vitamin B3.
- The correct answer is c. The DASH diet is designed as a lifelong approach to healthy eating. Its goal is to help prevent or reduce hypertension. According to information published by the Mayo Clinic, people who follow the DASH diet may be able to reduce their blood pressure by a few points in just two weeks.
- The correct answer is c. Treatment of IBS is generally supportive and focuses on avoiding foods that trigger IBS. Corticosteroids are used in the treatment of inflammatory bowel disease, not IBS.
- The correct answer is d. High fiber should be incorporated into the diet. The goal is to consume about 20 to 35 grams of fiber every day. Sodium should be limited as well as caffeine intake.
- The correct answer is b. Nutritional guidance should be part of every patient care plan.
Test Questions
w
|
Question
|
Answer A
|
Answer B
|
Answer C
|
Answer D
|
Correct
|
1
|
Using data on current patterns, a nurse
would tell a patient all of the following EXCEPT:
|
Research shows that Americans have
increased the percentage of energy intake from high-quality carbohydrates.
|
Reducing sodium consumption by 1,200
will save up to $200 billion a year in medical costs.
|
Empty calories from added sugars and
solid fats contribute to 40% of total daily calories for 2- to 18-year-olds.
|
The typical American diet exceeds the
recommended intake of calories from whole grains, sodium, added sugars, and
solid fats.
|
D
|
2
|
An obese patient is being seen by the
nurse practitioner. The patient has a history of heart disease. The nurse
practitioner would anticipate:
|
Lower HDL cholesterol.
|
A reduction in triglyceride levels.
|
Orthostatic hypotension.
|
A reduction in LDL cholesterol.
|
A
|
3
|
Theories of why obesity increases the
risk for some cancers include:
|
Fat tissues reduce estrogen, which is
associated with some female reproductive organ cancers.
|
Obese patients often have high levels of
subacute inflammation which increases cancer risk.
|
Obese people have decreased blood levels
of insulin, which is associated with colon cancer.
|
Adipokines in fat cells has no effect on
cell growth.
|
B
|
4
|
Pregnant women who are obese face an
increased risk of all of the following EXCEPT:
|
Emergency C-section.
|
Gestational diabetes.
|
Miscarriage.
|
Excessive vomiting.
|
D
|
5
|
In order to follow the recommendations
that are part of MyPlate, a person should:
|
Switch to 2% milk.
|
Make at least 25% of grain intake whole
grains.
|
Compare the amounts of sodium in foods.
|
Increase consumption of beef.
|
C
|
6
|
Vitamin ____is important to nerve
function and energy.
|
Thiamine.
|
Pyridoxine.
|
Folic acid.
|
Ascorbic Acid.
|
A
|
7
|
All of the following foods are allowed
on the lacto-vegetarian diet EXCEPT:
|
Eggs.
|
Butter.
|
Yogurt.
|
Cheese.
|
A
|
8
|
Pathophysiological changes associated
with poor nutrition in older adults include:
|
An over-active thirst mechanism.
|
Increased production of hydrochloric
acid.
|
Decreased sense of taste and smell.
|
Decreased sense of touch.
|
C
|
9
|
When counseling patients about the Keto
diet, the nurse would say:
|
There is little evidence to show that
the Keto diet is effective for long-term use except for patients with epilepsy.
|
The Keto diet is both low-carb and
low-fat.
|
Research suggests that the Keto diet may
exacerbate Alzheimer s disease.
|
The Keto diet causes increases in blood
insulin levels.
|
A
|
10
|
A nurse is working with a male patient
to help him enhance his nutritional status. The man should:
|
Ingest 4,000 to 5,000 calories daily.
|
Obtain 33% of calorie intake from
carbohydrates.
|
Obtain half of his calories from fat as
advised for men.
|
Obtain healthy fats from plant-based
oils.
|
D
|
|
|
|
|
|
|
|
|