Ingredient

Isolate

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Source
Unknown
Not yet classified by editors
Allergen
No
Role in food
Isolates are primarily used to boost the protein content of foods without significantly altering …

What it is

Isolate refers to a purified protein source, often derived from plants like soy or peas, or from dairy like whey. The process involves separating the protein from other components like fats and carbohydrates, resulting in a highly concentrated protein powder.

Why it's used

Isolates are primarily used to boost the protein content of foods without significantly altering flavor or texture. They are common in protein powders, bars, shakes, and some baked goods, helping to create a more satiating and nutritionally dense product.

Health notes

In the U.S., protein isolates are generally recognized as safe (GRAS) by the FDA when used as intended. They are a concentrated source of protein, which is essential for muscle repair and growth. International bodies like JECFA have evaluated protein isolates. Evidence suggests that protein isolates are well-tolerated by most individuals when consumed as part of a balanced diet.

Allergen info

Depending on the source, protein isolates can be derived from major allergens. Soy protein isolate is derived from soy, and whey protein isolate is derived from milk. Consumers with allergies to soy or milk should check product labels carefully.

Products containing Isolate

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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.