• diamine oxidase

    DAO Mini

    dispenser 60 tablets
    • Supports healthy degradation of food-derived histamine*
    • Tablets with gastro-resistant coating
    • Histamine block supplement
    • Contains the pure DAO enzyme
  • diamine oxidase

    DAO Plus

    50 capsules
    • Supports healthy degradation of food-derived histamine*
    • With gastro-resistant coating
    • Contains the pure DAO enzyme
  • 15% summer discount!

    diamine oxidase


    60 capsules
    • Special blend of vitamins and minerals
    • Supports the function of the DAO enzyme*
    • For food-derived histamine intolerance*
    • Vegan, dairy, gluten and soy free

our best-selling product

Intoleran quatrase forte helps with the digestion of dairy products, carbohydrates, fruit sugar and starches. Quatrase forte is an enzyme mix to support healthy digestion and prevent occasional gas and bloating.
try quatrase forte

15% summer discount!


quatrase 10.000 (forte)

36 capsules
  • Helps overcome digestive issues without a restrictive diet*
  • Enzymes specially designed for FODMAP issues
  • Multiple food intolerance formula
  • Helps to reduce occasional gas, bloating & indigestion*

Intoleran offers a wide range of supplements for food intolerances, including our DAO products and cozidase which help to digest histamine from food and supports healthy histamine levels in cases of histamine-intolerance.

Would you like to know which product is best for you? Read our frequently asked questions here. Would you like a personal answer to your questions? If so, feel free contact us!