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Whey Protein Isolate
Whey Protein Isolate
Also known as: whey isolate
Low concern
Whey protein isolate is a highly purified milk-derived protein recognized as a quality protein source. It is GRAS in the US.
Found in
4,516 products
What it is
Highly purified protein fraction (>=90% protein) extracted from milk whey.
Protein fortifier and functional ingredient.
Why it's flagged
- Contains milk allergen - requires labeling
- Trace lactose may affect lactose-intolerant individuals
What regulators actually say
"Milk is one of the major food allergens... must be declared on labels."
"Whey is the liquid substance obtained by separating the coagulum from milk... GRAS as a direct human food ingredient."
Regulatory status
United States — FDA
GRAS as derived from milk; milk is FALCPA major allergen.
European Union — EFSA
Milk listed allergen per Regulation 1169/2011.
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