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Vitamin D Yeast
Vitamin D Yeast
Low concern
UV-treated yeast is an FDA-approved source of vitamin D2 added to foods at low fortification levels. Vitamin D supports calcium absorption and bone health.
Found in
52 products
What it is
Yeast (Saccharomyces cerevisiae) exposed to UV light to convert ergosterol to ergocalciferol (vitamin D2).
Natural-source vitamin D fortificant for breads, plant milks, and supplements.
Why it's flagged
- potential excess intake from multiple fortified products
What regulators actually say
"Vitamin D2 (ergocalciferol) is generally recognized as safe (GRAS) when used as a nutrient supplement."
"Vitamin D promotes calcium absorption in the gut and is needed for bone growth and bone remodeling."
Regulatory status
United States — FDA
GRAS for use as vitamin D2 source (21 CFR 184.1950)
European Union — EFSA
Authorized novel food (Commission Regulation 2014/396)
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