Question

part b
which components of the dri identify the quantities of various nutrients a person requires to optimize health, prevent deficiency diseases, and avoid consuming too much of any nutrient?
options:

• eer and amdr
• ear, rda, ai, and ul
• rda, eer, and amdr
• ai, ul, and eer

part c
which component of the dri reflects the requirement of a nutrient for 50 percent of healthy americans and canadians in a specific life stage and gender?
options:

• ear (estimated average requirement)
• rda (recommended dietary allowance)
• ai (adequate intake)
• ul (tolerable upper intake level)

Explanation:

Part B

DRI (Dietary Reference Intakes) components: EAR (Estimated Average Requirement) is for average nutrient need, RDA (Recommended Dietary Allowance) meets needs of most, AI (Adequate Intake) when RDA can't be set, UL (Tolerable Upper Intake Level) is upper safe limit. These together help optimize health, prevent deficiency, and avoid excess. EER (Estimated Energy Requirement) is for energy, AMDR (Acceptable Macronutrient Distribution Ranges) is for macronutrient ratios, so they don't fit the description. So the correct option is EAR, RDA, AI, and UL.

EAR (Estimated Average Requirement) is defined as the nutrient requirement that meets the needs of 50% of healthy individuals in a specific life stage and gender group. RDA is for 97 - 98% of people, AI is used when RDA isn't available, and UL is the upper safe intake level. So the component reflecting the requirement for 50% is EAR.

Answer:

B. EAR, RDA, AI, and UL

Part C