November 18, 2022
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Updated the Dietary Supplements section to add a recent FDA ruling on nicotinamide mononucleotide.
August 23, 2022
Revised the Dietary Supplements section to include nicotinamide mononucleotide as a niacin-like compound found in some supplements.
March 26, 2021
Updated the Daily Value text, linked to the new edition of the Dietary Guidelines for Americans, and updated the associated text.
January 15, 2021
Corrected the definition of the "niacin number."
June 3, 2020
Updated the link to the Dietary Supplement Label Database in reference 13.
March 6, 2020
Updated Sources of Niacin to reflect the new Daily Value and the new Nutrition Facts and Supplement Facts Labels.
July 9, 2019
Updated the link to USDA’s FoodData Central.
February 1, 2019
In Table 2: Selected Food Sources of Niacin, added entry for pork tenderloin and corrected Daily Value percentage for tuna.
January 15, 2019
In the Recommended Intakes section, added explanation why niacin recommendations are not in niacin equivalents (NE) for infants from birth to 6 months of age.
