noun Nutrition.

United States recommended daily allowance: the daily amount of a protein, vitamin, or mineral that the FDA has established as sufficient to maintain the nutritional health of persons in various age groups and categories, derived from the RDA developed by the Food and Nutrition Board of the National Academy of Sciences and used in the nutritional labeling of food.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020