What is the Recommended Intake for Vitamin D?
The RDA, developed by the Institute of Medicine of the National Academy of Sciences,4 recommends the average daily intake that is sufficient to meet the nutrient requirements of healthy individuals in each age and gender group. An Adequate Intake (AI) is set when there is insufficient scientific data available to establish a RDA. The Institute of Medicine determined there was insufficient scientific information to establish a RDA for vitamin D. Instead, the recommended intake is listed as an Adequate Intake (AI), which represents the daily vitamin D intake that should maintain bone health and normal calcium metabolism in healthy people.
