recommended daily allowance

noun, often capitalized R&D&A
rec·​om·​mend·​ed dai·​ly al·​low·​ance | \ ˌrek-ə-ˌmend-əd-ˌdā-lē-ə-ˈlau̇-ən(t)s How to pronounce recommended daily allowance (audio) \
variants: or recommended dietary allowance

Medical Definition of recommended daily allowance

: the amount of a nutriment (as a vitamin or mineral) that is recommended for daily consumption by the Food and Nutrition Board of the National Academy of Sciences abbreviation RDA

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