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Ingredient dictionary

Lactase on a food label: allergens, diets and other names

Lactase is a kind of enzyme. Whether it carries an allergen depends on how it was made. Whether it is vegan depends on how it was made. Open Food Facts finds it in 3,899 products, most often in milk and yoghurt.

By Bravoora teamUpdated Sources checked 4 sourcesHow we check

Heads up

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Does lactase contain an allergen?

It depends on how it was made. Open Food Facts does not link lactase to an allergen, and Bravoora’s label checker does not read the name as one. The label must name any allergen it carries.

Is lactase vegan?

It depends on the make. Some kinds of lactase are made with an animal product and a label rarely says which, so a vegan profile gets Heads up. Whether it is vegetarian depends on the make too.

VeganHeads upSome kinds are made with an animal product, and a label rarely says which.
VegetarianHeads upSome kinds are made with an animal product vegetarians avoid, and a label rarely says which.

A pack can differ from the usual recipe: the app reads the label in your hand.

What other names does lactase have on a label?

In English lactase can also read “lactase enzyme”. On European labels it is “Laktase” in German, “lactasa” in Spanish and “lattasi” in Italian. The other 8 languages are listed below.

In Englishlactase enzyme
German
Laktase
Spanish
lactasa, enzima lactasa
Italian
lattasi, enzima lattasi
Polish
laktaza, enzym laktaza
Swedish
laktas, laktasenzym
Danish
laktase, laktaseenzym
Finnish
laktaasi, laktaasientsyymi
Czech
laktáza
Hungarian
laktáz, laktáz enzim
Croatian
laktaza, laktazu
Turkish
laktaz

Which foods contain lactase?

Open Food Facts lists lactase or a more specific kind of it in the ingredients of 3,899 products, most often milk and yoghurt, dairy desserts and sweetened drinks. Most of them are sold in the United States, Germany and France.

  • Milk and yoghurt1,468
  • Dairy desserts301
  • Sweetened drinks182
  • Drinks with sweeteners160
  • Cheese96
  • Unsweetened drinks90

Products with it, by country of sale: United States 1,026 · Germany 678 · France 501 · Spain 248.

Counted on 13 October 2026 from the Open Food Facts product database, which volunteers fill from real packs: it shows where lactase turns up, not how much of the market it is.

What kind of ingredient is lactase?

Lactase is a kind of enzyme.

Kinds of lactaseBeta-galactosidase

Bravoora reads this ingredient for everyone you shop for: an allergy or intolerance, a vegan or vegetarian diet, a calorie or protein goal, and the labels on supplements and skincare too. Build a profile · For dietitians, doctors and trainers

Sources

An allergen is stated only when two of three checks agree: the Open Food Facts record, Bravoora’s label checker, and the ingredient’s own name or family (oat flour is oats, a cheese is milk). Every name where they disagree waits for a person to review it.

  1. Open Food Facts: Lactase
  2. Open Food Facts: ingredients taxonomy (names, family tree, allergen and vegan flags), ODbL
  3. Open Food Facts: product database, 4,535,553 products, read 13 October 2026, ODbL
  4. Wikipedia: Lactase

Contains information from Open Food Facts, which is made available here under the Open Database License (ODbL). Read the licence · Download this dictionary’s data · How we check

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