Chapter 2 Nutrition Guidelines and Assessment Important Math Calculations Converting inches to centimeters: ____ in 2.54 = ____ cm Converting pounds to kilograms: ____ lbs 2.2 = ____ kg Chapter Outline I. Linking Nutrients, Foods, and Health A. Planning how you will eat 1. Adequacy 2. Balance 3. Calorie control 4. Nutrient density 5. Moderation 6. Variety II. Dietary Guidelines. *The Dietary Guidelines for Americans provides science-based advice to promote health and to reduce risk of chronic disease through diet and physical activity. A. Dietary Guidelines for Americans 1. Use the Dietary Guidelines for Americans, 2010 to guide personal choices and make informed food and activity decisions. a. integration of government, agriculture, health care, business, educators, and communities (Figure 2.2) B. Key Recommendations from the Dietary Guidelines for Americans (Table 2.1) 1. Overarching concepts a. Six chapters, 23 recommendations b. Maintain calorie balance over time c. Focus on consuming nutrient-dense foods and beverages 2. Balancing calories to manage weight 3. Food and Food Components to Reduce 4. Foods and Nutrients to Increase a. Recommendations for specific population groups 5. Building Healthy Eating Patterns 6. Helping Americans Make Healthy Choices 7. Ways to Incorporate the Dietary Guidelines into Your Daily Life C. Canada’s Guidelines for Healthy Eating Key terms: USDA, DHHS, DGAS, Eating Well with Canada’s Food Guide, Canada’s Guidelines for Healthy Eating III. From Dietary Guidelines to Planning: What You Will Eat. *MyPlate is an educational tool that helps consumers implement the principles of the Dietary Guidelines for Americans, 2010. A. A brief history of the food group plans B. MyPlate (Figure 2.4) © 2014 Jones & Bartlett Learning, LLC, an Ascend Learning Company 1. Eating Well With Canada’s Food Guide (Figure 2.5) C. Using MyPlate or Canada’s Food Guide in diet planning (Table 2.3). Key terms: food groups, FGP, MyPlate, Canada’s Food Guide IV. Exchange Lists (Figure 2.6). *The Exchange Lists are a diet planning tool most often used for diabetic or weight-control diets. A. Using the exchange lists in diet planning, servings for each food in the exchange lists are grouped so that equal amounts of carbohydrate, fat, and protein are provided by each choice. Key terms: Exchange Lists for Meal Planning V. Recommendations for Nutrient Intake: The DRIs A. Understanding dietary standards. *Dietary standards are values for individual nutrients that reflect recommended intake levels. These values are used for planning and evaluating diets for groups and individuals. B. A brief history of dietary standards C. Dietary Reference Intakes (Figure 2.7). *The Dietary Reference Intakes are the current dietary standards in the United States. The DRIs consist of four EAR, RDA, AI, and UL sets of values: EAR, RDA, AI, and UL. 1. Estimated Average Requirement (EAR) 2. Recommended Dietary Allowance (RDA) 3. Adequate Intake (AI) 4. Tolerable Upper Intake Level (UL) 5. Estimated Energy Requirement (EER) 6. Acceptable Macronutrient Distribution Ranges (AMDRs) D. Use of dietary standards Key terms: AMDRs, Recommended Nutrient Intake (RNI) VI. Food Labels (Figure 2.8). *Nutrition information on food labels can be used to select a more healthful diet. A. Ingredients and other basic information B. Nutrition Facts panel C. Daily Values D. Nutrient content claims E. Health claims F. Qualified health claims G. Structure/function claims H. Using labels to make healthful food choices Key terms: U.S. Department of Agriculture (USDA), Department of Health and Human Services (DHHS), Dietary Guidelines, food group, Food Guide Pyramid, Exchange Lists for Meal Planning, Recommended Dietary Allowances (RDA), Food and Nutrition Board (FNB), Dietary Reference Intake (DRI), requirement, Estimated Average Requirement (EAR), Adequate Intake (AI), Tolerable Upper Intake Level (UL), food label, Food and Drug Administration (FDA), Nutrition Labeling and Education Act (NLEA), statement of identity, Nutrition Facts, Daily Values (DV), enrich, fortified, Reference Daily Intake © 2014 Jones & Bartlett Learning, LLC, an Ascend Learning Company (RDI), Daily Reference Values (DRV), dietary supplements, Dietary Supplement Health and Education Act (DSHEA) VII. Nutrition Assessment: Determining Nutritional Health. *Nutrition assessment is a process of determining the overall health of a person as related to nutrition. A. The continuum of nutritional status B. Nutrition assessment of individuals C. Nutrition assessment of populations Key terms: nutrition assessment, marasmus, kwashiorkor, undernutrition, overnutrition VIII. Nutrition Assessment Methods. *Nutrition assessment involves four major factors: anthropometric measurements, biochemical tests, clinical observations, and dietary intake. A. Anthropometric measurements (Table 2.7) 1. Height and weight 2. Skinfolds (Figure 2.13) B. Biochemical tests C. Clinical observations D. Dietary intake 1. Diet history 2. Food record 3. Food Frequency Questionnaire 4. Twenty-four hour recall F. Methods of evaluating dietary intake data 1. Comparison to dietary standards 2. Comparison to MyPyramid and the Dietary Guidelines for Americans G. Outcomes of nutrition assessment Key terms: ABCDs of nutrition assessment, anthropometric measurement, skinfold measurement, biochemical assessment, clinical observation, diet history, food record, weighed food record, Food Frequency Questionnaire, twenty-four hour recall Classroom Activities ACTIVITY 1: APPLYING THE FOOD LABEL TO YOUR EVERYDAY LIFE The following are case studies that can be presented as critical thinking activities during the lesson on the Food Label. Students can work in groups, individually, or the case studies can be presented after the topic of relevance in the Food Label lesson. During this activity, the importance of how the Food Label is used to identify nutrient dense foods can be emphasized. Case Study 1 Jana buys a 1-pound bag of peanut M&M’s®. There are 11 servings in 1 bag and 1 serving provides 17% of the Daily Value for fat. She ends up eating half of the bag, which is approximately 5 servings. What % Daily Value of fat has Jana eaten if her needs are 2,000 kcal? Does she have much room left for additional fat in her diet for that day? ANSWER: 17% 3–5 servings = 85% of kcal from fat No, she doesn’t have much room left for additional fat in her diet (15% left). © 2014 Jones & Bartlett Learning, LLC, an Ascend Learning Company Case Study 2 An owner of a restaurant has heard that her clientele wants healthier alternatives on the menu. She decides to offer a low-fat strawberry shortcake and include the terminology lowfat on the menu. In order to abide by the nutrient content claims created by the government, how many grams of fat or less would this dessert have to contain? ANSWER: 3 g or less per serving Students can refer to page 50 in the text. Case Study 3 A dietitian in a hospital plans therapeutic diets for patients. His director wants to increase the calcium content in the breakfast meals. In order for the dietitian to provide the most calcium from yogurt at the breakfast meal, should he suggest adding a yogurt that has the claim “High in calcium” or “Good source of calcium?” Explain why. ANSWER: The dietitian should suggest the “High in calcium” yogurt because it provides greater than 20% or more of the Daily Value of calcium. Case Study 4 Blake goes out to eat at Applebee’s® and while looking at the menu notices they have a low-fat brownie sundae. He asks the waiter how many servings are in the sundae. The waiter believes there are 4 servings in 1 sundae. How many fat grams or less would be in this sundae? ANSWER: 4 servings 3 g of fat = 12 g of fat or less Case Study 5 Nutrient density means the measure of nutrients provided by a food relative to the energy it contains. The Food Label can help you identify what foods are the most nutrient dense for a diet. Tricia is making a meal for a group of 5-year-old children. She wants the meal to include foods the children like, but also wants the meal to be nutrient dense. Based on the following foods, which would be the better choice to make the meal more nutrient dense? These foods contain more nutrients in relation to their energy content. a. 1 cup Kool-Aid® vs. 1 cup grape juice b. 1 hot dog vs. 1 peanut butter and jelly sandwich c. 1 cup of yogurt vs. 1 cup ice cream ANSWERS: 1 cup grape juice, 1 peanut butter and jelly sandwich, 1 cup of yogurt Case Study 6 © 2014 Jones & Bartlett Learning, LLC, an Ascend Learning Company Craig decides to each lunch at McDonald’s®. He buys a cheeseburger and a small fry, but can’t decide if he wants a small soda or a small low-fat milkshake. Which option should Craig choose if he wants the drink with the most nutrient density? ANSWER: The low-fat milkshake because it is a source of the micronutrients calcium, phosphorus, potassium, vitamin A, and vitamin D whereas the soda has minimal micronutrients. Chapter 2: Spotlight on Complementary and Alternative Nutrition: Functional Foods and Dietary Supplements Chapter Outline I. Functional Foods. *A functional food is considered to be a food that may provide a health benefit beyond basic nutrition. A. Phytochemicals make foods functional. *Phytochemicals are plant chemicals responsible for the health-promoting properties of functional foods. 1. Benefits of phytochemicals (Table SAN.1). *Consumption of plant foods containing multiple antioxidants is strongly associated with health benefits. Scientific evidence strongly supports eating five servings of fruits and vegetables daily and emphasizing whole grains. 2. Adding phytochemicals to your diet B. Foods enhanced with functional ingredients C. Regulatory issues for functional foods Key terms: isoflavones, dietary supplements, complementary and alternative medicine (CAM), functional food, lycopene, free radicals II. Food Additives. *The federal government reviews the safety of new food additives before they can be used in foods sold on the market. A. Regulation by the FDA B. Delaney Clause. *The Delaney Clause is a controversial food law that prohibits the approval of a food additive if it has been found to cause cancer in humans or laboratory animals, even if massive doses are required to produce the disease. C. Additives in functional foods Key terms: additives, direct additives, indirect additives, color additive, Generally Recognized as Safe (GRAS), prior-sanctioned substance, Delaney Clause III. Claims for Functional Foods A. Structure/function claims for functional foods IV. Strategies for Functional Food Use V. Dietary Supplements: Vitamins and Minerals (Table SAN.3). *Dietary supplements encompass vitamins, minerals, herbal products, amino acids, glandular extracts, enzymes, and many other products. © 2014 Jones & Bartlett Learning, LLC, an Ascend Learning Company A. Moderate supplementation. *Vitamin and mineral supplements may be warranted in certain circumstances, although the preferred mode of obtaining adequate nutrition is through foods. B. Megadoses in conventional medical management. *Megadose vitamin or mineral therapy has not been proved effective in the treatment of cancer, colds, or heart disease. Moreover, such megadoses act more like drugs than nutrients in the body and should be approached with caution. C. Megadosing beyond conventional medicine: orthomolecular nutrition D. Drawbacks of megadoses Key terms: megadoses, nucleic acids, malabsorption syndromes, orthomolecular medicine VI. Dietary Supplements: Natural Health Products A. Helpful herbs, harmful herbs. *Herbal medicine is a traditional form of healing in many cultures. Some herbal medicines have shown enough promise to warrant large-scale clinical studies involving supplements. However herbal products can have side effects and can interfere with prescription medications. B. Other dietary supplements Key terms: herbal therapy, phytotherapy, National Center for Complementary and Alternative Medicine (NCCAM), bioflavonoids VII. Dietary Supplements in the Marketplace A. The FTC and supplement advertising B. The FDA and supplement regulation. *Dietary supplements are regulated according to the provisions of the Dietary Supplement Health and Education Act of 1994. Unlike drugs and food additives, dietary supplements do not need premarket approval. C. Supplement labels (Figure SAN.12). *Claims for dietary supplements can include health claims, structure/function claims, and nutrient content claims. Dietary supplements must have a Supplement Facts panel on the label. D. Canadian regulations E. Choosing dietary supplements. *Consumers should carefully evaluate claims and evidence for dietary supplements and consult their physician before taking a supplement. F. Fraudulent products Key terms: Dietary Supplement Health and Education Act, Supplement Facts panel, bioavailability, multilevel marketing, U.S. Pharmacopeia (USP) VIII. Complementary and Alternative Medicine. *Complementary and alternative medicine (CAM) comprises practices outside the medical mainstream that are becoming increasingly popular. CAM includes a broad range of therapies, many of which include nutrition. People seek them for a variety of reasons, including environmental concerns and a fear of aging. A. Where does nutrition fit in? 1. Vegetarian diets 2. Macrobiotic diet 3. Food restrictions and food prescriptions Key term: macrobiotic diet © 2014 Jones & Bartlett Learning, LLC, an Ascend Learning Company Classroom Activities ACTIVITY 1: VITAMIN AND MINERAL SUPPLEMENTATION The following worksheet can be used to identify the pros and cons of taking a vitamin and or mineral supplement. Students can complete group work to answer the questions or the instructor can use the questions as an outline for the lesson on vitamin and mineral supplements. Multivitamin/Mineral Supplements 1. Should a vitamin/mineral supplement be taken to achieve optimal health and nutrition? Why or why not? ANSWER: Not necessarily. The use of vitamin/mineral supplementation depends on the individual. Diet, overall health, and lifestyle need to be evaluated. For most healthy adults, MyPyramid can provide an individual with all of his or her nutritional needs. 2. Are there any dangers in taking additional vitamins and minerals in pill form? ANSWER Yes! Fat-soluble vitamins are stored by the body. Some can cause toxic effects if taken in large doses. Water-soluble vitamins tend to be less toxic because the body excretes excess amounts rather than storing them. However, niacin can have pharmacological effects and high doses of vitamin C can cause diarrhea. 3. Discuss specific instances when a person might need a vitamin/mineral supplement. ANSWER Individuals who may need vitamin/mineral supplements are pregnant or lactating women, older adults, individuals in disease states, those on strict weight-loss diets, vegans, some children, lactose intolerant individuals, and women who experience heavy menstrual bleeding. 4. Are there any advantages and/or disadvantages to relying on vitamin/mineral supplementation for adequate micronutrient intake? What are they? ANSWER Advantages When one has a busy lifestyle and does not always consume MyPyramid recommendations. Refer to question 3. Disadvantages Supplementation may encourage a false sense of security. High doses of one type of micronutrient may interfere with absorption of another micronutrient. Supplementation provides no fiber. © 2014 Jones & Bartlett Learning, LLC, an Ascend Learning Company
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