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Vitamin A Change History

Fact Sheet for Health Professionals
March 2, 2018
View change Updated Dietary Reference Intake definitions.
August 31, 2016
Added new paragraph to "Recommended Intakes" section to explain that older conversion factors from 1968 for converting between IU and mg for vitamin A and provitamin A carotenoids are used for the manufacture and addition of this nutrient to dietary supplements and foods, as well as for the labeling the vitamin A content of these products, instead of newer conversion factors issued in 2001.