Ingredient

Whey Protein Hydrolysate

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Source

Animal-derived

Allergen

Role in food

Manufacturers use whey protein hydrolysate as a source of protein and to improve texture …

What it is

Whey protein hydrolysate is a form of whey protein that has been broken down into smaller protein pieces called peptides. It is derived from whey, a byproduct of cheese production. The process of hydrolysis uses enzymes or acids to break down the protein chains.

Why it's used

Manufacturers use whey protein hydrolysate as a source of protein and to improve texture and mixability. It is often found in sports nutrition products like protein powders, bars, and drinks, as well as in some infant formulas and medical foods.

Health notes

Whey protein hydrolysate is generally recognized as safe (GRAS) by the FDA for use in food. It is a source of high-quality protein, which is important for muscle repair and growth. Regulatory bodies like JECFA and EFSA have evaluated whey proteins. While generally well-tolerated, some individuals may experience digestive upset.

Allergen info

Whey protein hydrolysate is derived from milk, which is one of the 9 FDA major allergens. It does not contain gluten.

Products containing Whey Protein Hydrolysate

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BOUNCE Natural Energy Ball Snack, Energy & Granola Bars 429kcal 26.5Protein 22.4Fat 36.7Carbs Premier Nutrition Corporation High Protein Bar, Peanut Butter Crunch Snack, Energy & Granola Bars High in sodium — 20% DV per serving High in saturated fat — 25% DV per serving 417kcal 41.7Protein 13.9Fat 33.3Carbs Premier Nutrition Corporation Premier Protein, Gluten Free High Protein Bar, Chocolate, Peanut Butter, Chocolate, Peanut Butter Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 403kcal 41.7Protein 11.1Fat 34.7Carbs Premier Nutrition Corporation High Protein Bar, Peanut Butter Crunch Snack, Energy & Granola Bars High in sodium — 20% DV per serving High in saturated fat — 25% DV per serving 417kcal 41.7Protein 13.9Fat 33.3Carbs Katy's LLC Cookies, Chocolate Peanut Butter Cookies & Biscuits High in saturated fat — 25% DV per serving 500kcal 12.5Protein 31.2Fat 43.8Carbs Bluehall Bakery, LLC Protein Bliss Energy Balls, Coconut Macadamia Snack, Energy & Granola Bars 400kcal 20Protein 17.5Fat 50Carbs Premier Nutrition Corporation High Protein Bar, Peanut Butter Crunch Snack, Energy & Granola Bars High in sodium — 20% DV per serving High in saturated fat — 25% DV per serving 417kcal 41.7Protein 13.9Fat 33.3Carbs

Premier Nutrition Corporation High Protein Bar, Chocolate Peanut Butter Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 403kcal 41.7Protein 11.1Fat 34.7Carbs The Kroger Co. Protein Bar, Double Chocolate Snack, Energy & Granola Bars 380kcal 42Protein 9Fat 32Carbs Et Investments, LLC Kids Premium Protein On-The-Go Whey Blend + Electrolytes, Milk Chocolate Powdered Drinks 304kcal 43.5Protein 4.3Fat 39.1Carbs Premier Nutrition Corporation Protein Bar, Salted Caramel Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 403kcal 41.7Protein 9.7Fat 36.1Carbs Premier Nutrition Corporation Protein Bar, Dark Chocolate Almond Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 403kcal 41.7Protein 11.1Fat 34.7Carbs

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.