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DAO enzyme supplements provide diamine oxidase, the enzyme that breaks down histamine from food in the digestive tract. They support the digestion of histamine from foods like aged cheese, fermented products and wine, and are used alongside a low-histamine diet (1). Supplements differ in enzyme activity (expressed in HDU) and in whether they contain added […]https://www.intoleran.com/us/wp-content/uploads/sites/17/2025/07/Hulp-bij-het-kiezen-van-een-passend-lactase-supplement-3.png