Ingredient

Grass-fed Whey Protein Isolate

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Source
Animal-derived
Allergen
No
Role in food
Manufacturers add whey protein isolate primarily as a protein source. It is valued for …

What it is

Whey protein isolate is a highly purified form of whey protein, a byproduct of cheese production. It is made by further processing whey to remove most of the lactose (milk sugar) and fat, resulting in a powder that is typically at least 90% protein.

Why it's used

Manufacturers add whey protein isolate primarily as a protein source. It is valued for its high protein content and relatively neutral flavor, making it suitable for a wide range of products. It is commonly found in protein powders, bars, and nutritional supplements.

Health notes

Whey protein isolate is generally recognized as safe (GRAS) by the FDA for use in food. It is a complete protein, containing all essential amino acids, and is often used to support muscle growth and repair. International bodies like JECFA have evaluated whey proteins. While generally considered safe, some individuals may experience digestive discomfort.

Allergen info

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

Products containing Grass-fed Whey Protein 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.