NFS 220 Midterm: Ch. 1 Outline
3 Feb 2019
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Document Summary
Facilitate the release of energy (do not yield energy) Carbohydrates and protein both provide 4 kcal of energy per gram. Fat provides 9 kcal of energy per gram (greater energy density) Most foods have a mixture of carbohydrates, fats, and proteins. Energy-yielding nutrients are used to build new compounds and fuel metabolic and physical activities. Excess energy is mostly stored as fat for later use. Too many kcal can result in weight gain. Alcohol is not a nutrient but contributes energy (7 kcal per gram) Dietary reference intakes (dri), estimated energy requirements (eer), and acceptable macronutrient distribution ranges (amdr): Dri- set of dietary standards that supports health by defining recommended nutrient intakes in the us and canada (energy, nutrients, physical activity, etc) Recommended dietary allowances (rda)- based on experimental evidence and basis for dri. Adequate intakes (ai)- based on scientific judgement, not experimental evidence; guides for nutrient intakes used when evidence is insufficient to define rda.
