HNF 150 EXAM 1 Learning Objectives 100% Verified Solution

HNF 150 EXAM 1 Learning Objectives 100% Verified Solution Reasons for the obesity epidemic & a better way to characterize it. - Correct Answer-The poor nutrition epidemic, the physical inactivity epidemeic. Overemphasis on weight. Obesity has no correlation with mortality. State how the DRI's (RDA and EER) for energy and other nutrients are established. - Correct AnswerDRI's reflect daily intakes to be achieved, on average, over time. Set high enough to ensure that body stores will meet nutrient needs during periods of inadequate intakes. Apply to healthy persons only. By finding out how much of a nutrient healthy individual needs: - (1) review scientific studies of deficiencies, how much your body stores of the nutrient, what can cause depletion of the nutrient, and what other factors influence these factors. - (2) One type of study = balance studies. Test different levels of intake of the nutrient. Measure excretion of the nutrient (urine, sweat, breath). Find out how much a person needs when: intake = excretion. Identify the purposes and differences in the nutrient standards: Dietary Reference Intakes (DRI), Estimated Average Requirements (EAR), Recommended Dietary Allowances (RDA), Adequate Intakes (AI), Tolerable Upper Intake Levels (UL), Daily Value (DV) and Acceptable Macronutrient Distribution Ranges (AMDR). - Correct Answer-- RDA (recommended dietary allowances) - nutrient intake goals for individuals. - AI (adequate intakes) - nutrient intake goals for individuals. Set when scientific data are insufficient to establish RDA. - EAR (estimated average requirements) - population-wide average nutrient requirements use in nutrition research and policymaking. Form the basis for the RDA's. - UL (upper intake levels) - suggested upper limit for potentially toxic nutrients. Intakes above the UL are likely to cause illness from toxicity. - AMDR (acceptable macronutrient distribution ranges for energy nutrients) - provide adequate total energy and nutrients while preventing chronic diseases. RDA is set at a high value that is above 97-98% of the population's needs. Estimated Energy Requirement set at the average. ADMR is a percentage that a certain food group should take up from the entire diet. Carbohydrates: 45-65% of calories, Fat: 20-35% of calories, Protein: 10-35% of calories. - Daily Values (DV) - nutrient standards used on food labels, in grocery stores, and on some restaurant menus. Allows comparisons among food with regard to their nutrient content. Reflect the nutrient requirements of an "average" person - someone who eats kcals/day. Continues...