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Hydrolyzed Whey Protein

Also known as: whey protein hydrolysate, WPH

Low concern

Hydrolyzed whey protein is a recognized food ingredient and is safe at typical exposure. The main caveat is that it is a dairy-derived allergen and must be declared as milk under US and EU labeling rules.

What it is

Whey protein from milk that has been enzymatically pre-digested into smaller peptides for faster absorption.

Provides high-quality protein with rapid absorption; used in sports nutrition, infant formulas, and clinical nutrition products.

Why it's flagged

Milk allergen — must be avoided by those with milk allergy
Not suitable for those with severe lactose intolerance unless lactose-free

Regulatory status

United States — FDA

GRAS / conventional food; major allergen (milk)

European Union — EFSA

Authorised conventional food; declared allergen

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