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Vitamin A Change History

Fact Sheet for Health Professionals
October 11, 2019
View change Clarified text and updated conversions between IU and mcg RAE based on FDA guidance for industry.
July 9, 2019
Updated the link to USDA’s FoodData Central.
October 5, 2018
Revised paragraph in the “Recommended Intakes” section and the footnote in Table 2 to acknowledge the updated Nutrition and Supplement Facts labels and how the units for vitamin A and its Daily Value will change on these labels.
March 2, 2018
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.