Ingredient

Partially Hydrolyzed Whey Protein Isolate

Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Source
Animal-derived
Allergen
No
Role in food
Manufacturers use it as a protein supplement and to improve the texture and mouthfeel …

What it is

Partially hydrolyzed whey protein isolate is a protein source derived from milk. It is made by breaking down whey protein isolate into smaller protein fragments, a process called hydrolysis, which can make it easier to digest.

Why it's used

Manufacturers use it as a protein supplement and to improve the texture and mouthfeel of foods. It is commonly found in protein bars, nutritional shakes, and other sports nutrition products.

Health notes

Partially hydrolyzed whey protein isolate is generally recognized as safe (GRAS) by the FDA for use in food. It is a source of protein, which is essential for muscle repair and growth. International bodies like JECFA have evaluated whey proteins. Evidence does not suggest adverse health effects at typical intake levels.

Allergen info

This ingredient is derived from milk, which is one of the 9 FDA major allergens. It does not contain gluten.

Products containing Partially Hydrolyzed Whey Protein Isolate

Compare products →
Sort by: Sugar Protein Sodium Calories
Mint Chocolate Cookie Protein Bars, Mint Chocolate Cookie General Mills, Inc. Mint Chocolate Cookie Protein Bars, Mint Chocolate Cookie Snack, Energy & Granola Bars 333kcal 37.0Protein 11.1Fat 37.0Carbs Salted Caramel Crisp Protein Bars, Salted Caramel Crisp General Mills, Inc. Salted Caramel Crisp Protein Bars, Salted Caramel Crisp Snack, Energy & Granola Bars 321kcal 35.7Protein 10.7Fat 39.3Carbs Vanilla Almond Protein Bar, Vanilla Almond Rexall Sundown, Inc. Vanilla Almond Protein Bar, Vanilla Almond Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 400kcal 40Protein 16Fat 30Carbs Rexall Sundown, Inc. Vanilla Almond Bar, Vanilla Almond Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 400kcal 40Protein 16Fat 30Carbs Lemon Cake Bar, Lemon Rexall Sundown, Inc. Lemon Cake Bar, Lemon Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 380kcal 40Protein 14Fat 32Carbs Peanut Butter Cup Bar, Peanut Butter Rexall Sundown, Inc. Peanut Butter Cup Bar, Peanut Butter Snack, Energy & Granola Bars High in saturated fat — 20% DV per serving 400kcal 40Protein 16Fat 34Carbs Rexall Sundown, Inc. Mocha Cream Protein Bar, Mocha Cream Snack, Energy & Granola Bars 360kcal 40Protein 12Fat 34Carbs Cookie Dough Protein Bar, Cookie Dough Rexall Sundown, Inc. Cookie Dough Protein Bar, Cookie Dough Snack, Energy & Granola Bars High in saturated fat — 22% DV per serving 380kcal 40Protein 14Fat 34Carbs Chocolate Caramel Bar, Chocolate Caramel Rexall Sundown, Inc. Chocolate Caramel Bar, Chocolate Caramel Snack, Energy & Granola Bars High in saturated fat — 22% DV per serving 380kcal 40Protein 12Fat 36Carbs Rexall Sundown, Inc. Chocolate Caramel Protein Bars, Chocolate Caramel Snack, Energy & Granola Bars High in saturated fat — 22% DV per serving 380kcal 40Protein 12Fat 36Carbs Rich Vanilla Flavored Gold Standard 100% Isolate Protein Powder Drink Mix, Rich Vanilla Optimum Nutrition, Inc. Rich Vanilla Flavored Gold Standard 100% Isolate Protein Powder Drink Mix, Rich Vanilla Energy, Protein & Muscle Recovery Drinks 333kcal 83.3Protein 0Fat 3.3Carbs Birthday Cake Flavored Gold Standard 100% Isolate Protein Powder Drink Mix, Birthday Cake Optimum Nutrition, Inc. Birthday Cake Flavored Gold Standard 100% Isolate Protein Powder Drink Mix, Birthday Cake Energy, Protein & Muscle Recovery Drinks 333kcal 83.3Protein 0Fat 3.3Carbs
Natural Flavors (61 products) Soy Lecithin (56 products) Sugar (55 products) Whey Protein Isolate (53 products) Water (51 products) Salt (47 products) Milk Protein Isolate (44 products) Glycerin (39 products) Cocoa Butter (36 products) Whey Protein Concentrate (36 products)

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.