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Vitamin D Deficiency

What are the vitamin D requirements?

There are currently two sets of guidelines for vitamin D intake. Typically, vitamin guidelines are established by the Institute of Medicine (IOM) in the form of recommended dietary allowances (RDA) or adequate intakes (AI). The RDA is the average daily intake sufficient to meet the nutrient requirements of nearly all (97%-98%) healthy individuals. The Endocrine Society put together a task force to review the research and come up with a set of guidelines for "people who are at risk for deficiency." The two recommendations are as follows:

  1 to 18 years old 19 to 70 years old 71+ years old
IOM 600 IU/day 600 IU/day 800 IU/day
Endocrine Society 600-1,000 IU/day 1,500-2,000 IU/day 1,500-2,000 IU/day
Reviewed on 6/9/2016

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