Ingredient

Hydrolyzed Soy Protein Isolate

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Source
Not animal-derived
Allergen
No
Role in food
Manufacturers use hydrolyzed soy protein isolate to add a savory, meaty, or umami flavor …

What it is

Hydrolyzed soy protein isolate is made from soybeans. The soybeans are processed to separate the protein, which is then broken down into smaller pieces (hydrolyzed) using enzymes or acids. This process makes the protein easier to digest and can create a savory or umami flavor.

Why it's used

Manufacturers use hydrolyzed soy protein isolate to add a savory, meaty, or umami flavor to foods. It also functions as a flavor enhancer and can improve texture. It is commonly found in snacks, soups, sauces, and processed meat alternatives.

Health notes

Hydrolyzed soy protein isolate is generally recognized as safe (GRAS) by the FDA for use in food. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has evaluated it and established an acceptable daily intake. Evidence does not suggest adverse health effects from typical consumption.

Allergen info

Soy is one of the 9 major allergens identified by the FDA. Therefore, products containing hydrolyzed soy protein isolate must be labeled as containing soy.

Products containing Hydrolyzed Soy Protein Isolate

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Chocolate Crunch Protein Crisp Bars, Chocolate Crunch Glanbia Performance Nutrition, Inc. Chocolate Crunch Protein Crisp Bars, Chocolate Crunch Snack, Energy & Granola Bars High in saturated fat — 25% DV per serving 345kcal 36.4Protein 12.7Fat 38.2Carbs Vanilla Marshmallow Protein Crisp Packed Bar, Vanilla Marshmallow Glanbia Performance Nutrition, Inc. Vanilla Marshmallow Protein Crisp Packed Bar, Vanilla Marshmallow Snack, Energy & Granola Bars High in saturated fat — 22% DV per serving 327kcal 32.7Protein 10.9Fat 43.6Carbs Peanut Butter Crunch Protein Crisp Bars, Peanut Butter Crunch Glanbia Performance Nutrition, Inc. Peanut Butter Crunch Protein Crisp Bars, Peanut Butter Crunch Snack, Energy & Granola Bars 418kcal 36.4Protein 12.7Fat —Carbs KSF Acquisition Corporation Crispy Chocolate Fudge Treat Delights Snack Bars, Crispy Chocolate Fudge Treat Snack, Energy & Granola Bars 348kcal 34.8Protein 8.7Fat 39.1Carbs KSF Acquisition Corporation Crispy Toffee Pretzel Treat Delights Snack Bars, Crispy Toffee Pretzel Treat Snack, Energy & Granola Bars 348kcal 34.8Protein 13.0Fat 39.1Carbs
Dried Egg White (5 products) Natural And Artificial Flavor (5 products) Calcium Carbonate (5 products) Water (5 products) Tapioca Starch (5 products) Whey Protein Concentrate (5 products) Glycerin (5 products) Milk Protein Blend (5 products) Whey Protein Isolate (5 products) Rice Starch (5 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.