Ingredient

Lactase Enzymes

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Source
Not animal-derived
Allergen
No
Role in food
Lactase enzymes are added to dairy products to make them lactose-free, benefiting individuals with …

What it is

Lactase enzymes are proteins that help break down lactose, a sugar found in milk and dairy products. They are naturally produced in the digestive systems of mammals. In food production, lactase is typically produced through fermentation by specific microorganisms, like yeast or bacteria, and then purified.

Why it's used

Lactase enzymes are added to dairy products to make them lactose-free, benefiting individuals with lactose intolerance. By breaking down lactose into simpler sugars (glucose and galactose), it improves digestibility and can enhance sweetness. It is commonly found in milk, yogurt, ice cream, and cheese marketed as lactose-free.

Health notes

Lactase enzymes are Generally Recognized As Safe (GRAS) by the FDA for use in food. They are not absorbed by the body but rather act within the digestive tract to break down lactose. International bodies like JECFA have evaluated lactase enzymes. No significant health concerns are associated with consuming foods containing added lactase enzymes at typical levels.

Allergen info

Lactase enzymes themselves are not a major allergen. However, they are often produced using microorganisms that may be grown on media derived from sources like soy or wheat, and residual traces could be present. If derived from milk, it would not be considered a major allergen as it is a processed enzyme, not the milk protein itself.

Products containing Lactase Enzymes

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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.