Recommended Dietary Allowance: The RDA, the estimated amount of a nutrient (or calories) per day considered necessary for the maintenance of good health by the Food and Nutrition Board of the National Research Council/ National Academy of Sciences. The RDA is updated periodically to reflect new knowledge. It is popularly called the Recommended Daily Allowance.
CONTINUE SCROLLING OR CLICK HERE FOR RELATED SLIDESHOW
Last Editorial Review: 1/25/2017