low FODMAP Certified™ by the Monash University

local development and production in the Netherlands

recommended by dietitians and based on scientific research

diamine oxidase (DAO)

the enzyme diamine oxidase (DAO)

Diamine oxidase (DAO) is the body’s own enzyme that can digest histamine from food in the small intestine. Diamine oxidase is also present in the kidneys and the placenta. The diamine oxidase enzyme contained in our DAO supplements is derived from porcine kidney protein extract.

Unfortunately, no plant-based version of the enzyme is available (yet). Research has been done, but with the current technology it is still a step too far, as the shelf life of the plant-based enzyme is only a few weeks.

Diamine oxidase helps to digest the histamine that is naturally present in food. This histamine is called exogenous histamine. Because the exogenous histamine is digested in the small intestine it cannot migrate through the gastrointestinal wall into the bloodstream and increase histamine levels there.

The histamine in the body is called endogenous histamine. An excessively high level of endogenous histamine can cause histamine intolerance symptoms.

our products

diamine oxidase

DAO Plus

50 capsules

Helps to digest histamine from food for those with a histamine-intolerance. Extra support of…

diamine oxidase

DAO Mini

dispenser 60 tablets

Helps to digest histamine from food for those with a histamine intolerance. Convenient, small…



36 capsules

Enzyme that helps with the digestion of excess fruit sugar. Prevents gas, bloating, abdominal…


quatrase forte (10.000)

36 capsules

Enzyme mix to support healthy digestion and prevents occasional gas and bloating. Helps with…



50 capsules

Enzyme that helps with the digestion of starchy food and sucrose. Prevents gas, bloating,…


fibractase forte (1200)

36 capsules

Enzyme that helps with the digestion of carbohydrates found in grains, legumes and cruciferous…


lactase 20,000

50 scored tablets

Highest dosed lactase tablet. Helps with the digestion of dairy products. Fast-acting lactase tablets,…

decrease bloating

free advice from our dietitians

Do you have questions about our products? Feel free to contact us. One of our dietitians will help you find the supplement that fits your needs best.

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