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Meaning of recommended dietary allowance

recommend'ed di'etary allow'ance

Pronunciation: [key]
— Nutrition. Nutrition.
  1. the amount of an essential nutrient, as a vitamin or mineral, that has been established by the Food and Nutrition Board of the National Academy of Sciences as adequate to meet the average daily nutritional needs of most healthy persons according to age group and sex. Abbr.: RDA&hasp; Cf.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.