Ingredient

Water Isolated Soy Protein

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Source
Not animal-derived
Allergen
No
Role in food
Manufacturers add isolated soy protein to foods to boost protein content and improve texture. …

What it is

Isolated soy protein is a concentrated form of protein extracted from soybeans. It is made by removing the carbohydrates and fats from soybeans, leaving behind a protein-rich powder. This process results in a highly purified protein ingredient.

Why it's used

Manufacturers add isolated soy protein to foods to boost protein content and improve texture. It acts as a binder and emulsifier, helping to hold ingredients together and create a smoother consistency. It is commonly found in processed meats, protein bars, and baked goods.

Health notes

Isolated soy protein is generally recognized as safe (GRAS) by the FDA for use in food. It is a complete protein, meaning it contains all essential amino acids. JECFA has evaluated isolated soy protein and established an acceptable daily intake. While soy is a common allergen, isolated soy protein is generally well-tolerated by most people when consumed in typical amounts.

Allergen info

Isolated soy protein is derived from soy, which is one of the 9 FDA major allergens. It does not contain gluten.

Products containing Water Isolated Soy Protein

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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.