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Zinc Oxide
Zinc Oxide
Low concern
Essential nutrient. NIH ODS RDA 11 mg/day for adult men, 8 mg/day for adult women; tolerable upper intake level 40 mg/day for adults.
Found in
7,634 products
What it is
Inorganic zinc compound (ZnO) used as a source of zinc nutrient in foods and supplements.
Zinc fortification.
Why it's flagged
- Excess zinc impairs copper absorption at intakes above UL
What regulators actually say
"The tolerable upper intake level for zinc for adults is 40 mg/day"
"Zinc oxide is generally recognized as safe when used as a nutrient"
Regulatory status
United States — FDA
GRAS 21 CFR 182.5991 (nutrient)
European Union — EFSA
Authorised nutrient source
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