Final answer:
The correct definitions are provided in option A, detailing DRI as Dietary Reference Intakes, EAR as Estimated Average Requirement, RDA as Recommended Dietary Allowance, AI as Adequate Intake, and UL as Tolerable Upper Intake Level.
Step-by-step explanation:
The correct definitions of DRI, EAR, RDA, AI, and UL are essential for understanding and assessing dietary needs. The correct option for defining these terms is A. DRI stands for Dietary Reference Intakes, a set of reference values used for planning and assessing nutrient intake of healthy people.
EAR, or Estimated Average Requirement, is the average daily intake estimated to meet the requirement of half the healthy individuals in a particular life stage and gender group. RDA, the Recommended Dietary Allowance, is the average daily dietary nutrient intake level sufficient to meet the nutrient requirement of nearly all (97 to 98 percent) healthy individuals in a particular life stage and gender group.
AI, or Adequate Intake, is a recommended intake value based on observed or experimentally determined approximations of nutrient intake by a group (or groups) of healthy people that are assumed to be adequate — used when an RDA cannot be determined.
Finally, UL refers to Tolerable Upper Intake Level, which is the highest level of daily nutrient intake that is likely to pose no risk of adverse health effects to almost all individuals in the general population. As intake increases above the UL, the potential risk of adverse effects increases.