Recommended Dietary Allowance (RDA) is the daily dietary intake level of a nutrient that is considered sufficient to meet the requirements of nearly all (97-98%) healthy individuals in each life-stage and gender group. The RDAs are established by the Food and Nutrition Board of the (US) National Academy of Sciences. The United States of America — also referred to as the United States, the U.S.A., the U.S., America, the States, or (archaically) Columbia—is a federal republic of 50 states located primarily in central North America (with the exception of two states: Alaska and Hawaii). ... President Harding and the National Academy of Sciences at the White House, Washington, DC, April 1921 The National Academy of Sciences (NAS) is a corporation in the United States whose members serve pro bono as advisers to the nation on science, engineering, and medicine. ...
They are intended to serve as nutrition guidance to the general public and health professionals. Uses:
food labels
composition of diets for schools, prisons, hospitals or nursing homes
industry developing new food stuffs
healthcare policy makers and public health officials
In 1997 at the suggestion of the Institute of Medicine of the National Academy RDA became one part of a broader set of dietary guidelines called the Dietary Reference Intake or DRI. Dietary Reference Intake is a set of guidelines set up in 1997 to give more detailed guidance than the RDA system which preceded it. ... DRI may stand for: Darden Restaurants, Inc. ...
The RDA specifications are not universally accepted.
The report does call for increases in dailyintakes of vitamins C and E to exploit their role in maintaining good heath, and recommends an even larger amount of vitamin C for smokers.
The recommendeddailyintake levels for vitamin C were increased to 75 milligrams per day for adult women and 90 milligrams per day for adult men.
The recommendeddailyintake levels for vitamin E were also increased to 15 milligrams per day for both adult men and women.
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