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The Dietary Reference Intake (DRI) is a system of nutrition recommendations from the National Academy of Medicine (NAM) [a] of the National Academies (United States). [1] It was introduced in 1997 in order to broaden the existing guidelines known as Recommended Dietary Allowances (RDAs, see below).
In 1997, at the suggestion of the Institute of Medicine of the National Academy, the RDAs became one part of a broader set of dietary guidelines called the Dietary Reference Intake used by both the United States and Canada. As part of the DRI, the RDAs continued to be updated.
The Recommended Dietary Allowances (RDAs) are scientifically determined levels of essential nutrient intake, deemed sufficient by the Food and Nutrition Board to meet the nutritional needs of nearly all healthy individuals. The first RDAs were published in 1943, during World War II, with the aim of setting standards for optimal nutrition. The ...
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RNI - Reference Nutrient Intake (95% of the population's requirement is met) EAR - Estimated Average Requirement (50% of the population's requirement is met) LRNI - Lower Recommended Nutritional Intake (5% of the population's requirement is met) RNI is not the same as RDA (Recommended Daily Allowance) or GDA, although they are often similar. [3]
These are older than the current RDA of the Dietary Reference Intake. For vitamin C , vitamin D , vitamin E , vitamin K , calcium , phosphorus , magnesium , and manganese , the current highest RDAs are up to 50% higher than the older Daily Values used in labeling, whereas for other nutrients the recommended needs have gone down.
Japan designates chromium as an essential nutrient, identifying 10 μg/day as an adequate intake for adults. [12] The European Food Safety Authority (EFSA) refers to the collective set of information as Dietary Reference Values, with Population Reference Intake (PRI) instead of RDA, and Average Requirement instead of EAR. AI and UL are defined ...
The US National Academy of Medicine updated Dietary Reference Intakes (DRIs) in 2001 for vitamin A, which included Recommended Dietary Allowances (RDAs). [5] For infants up to 12 months, there was not sufficient information to establish an RDA, so Adequate Intake (AI) is shown instead.