Question

to establish a nutrients rda, nutrition scientists add ______ of the nutrient to its ear. multiple choice a \margin of safety\ amount an ai amount the % dv amount 50 to 100 mg

Explanation:

To determine the correct answer, we analyze the options:

• Option "a'margin of safety' amount": RDA (Recommended Dietary Allowance) is calculated by adding a margin of safety to the EAR (Estimated Average Requirement) to account for individual variations and ensure adequacy for almost all individuals.
• Option "an AI amount": AI (Adequate Intake) is used when EAR can't be determined, not related to calculating RDA from EAR.
• Option "the % DV amount": %DV (Percent Daily Value) is for labeling, not part of RDA calculation from EAR.
• Option "50 to 100 mg": This is a specific quantity and not the general method for calculating RDA from EAR.

Answer:

a. a "margin of safety" amount