Ingredient

Lactose Whey

Source
Animal-derived
Allergen
No
Role in food
Manufacturers add lactose whey as a sweetener and to improve texture in foods. It …

What is Lactose Whey?

Lactose whey is a byproduct of cheesemaking. It is the liquid remaining after milk has been curdled and strained. This liquid contains lactose (milk sugar), whey proteins, and water.

Is Lactose Whey vegan?

No. Lactose Whey is animal-derived, so it is not vegan.

Is Lactose Whey gluten-free?

It does not contain gluten.

Is Lactose Whey a major allergen?

Lactose whey is derived from milk, which is one of the 9 FDA major allergens.

What is Lactose Whey used for?

Manufacturers add lactose whey as a sweetener and to improve texture in foods.

Is Lactose Whey safe?

Lactose whey is generally recognized as safe (GRAS) by the FDA for use in food.

Why it's used

Manufacturers add lactose whey as a sweetener and to improve texture in foods. It is often found in baked goods, processed dairy products, and some snack foods.

Health notes

Lactose whey is generally recognized as safe (GRAS) by the FDA for use in food. It is a source of lactose, which can cause digestive issues for individuals with lactose intolerance. JECFA and EFSA have evaluated lactose and its derivatives. No significant health controversies are associated with typical consumption of lactose whey.

Allergen info

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

Foods that contain Lactose Whey

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The 9 Major Allergens and the FASTER Act →

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Last updated: October 5, 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.