Brand: XYMOGENFeatures: Enzyme formula containing 20,000 HDU of diamine oxidase (DAO) enzymes per tablet. NOTE: This product has been reformulated from 2 capsules to 1 single tablet needed to get a full serving of dao. Unlike standard digestive enzymes used for digestion support, this enzyme has been clinically tested and found to break down food-derived histamine in the digestive tract.* Enhances the presence of diamine oxidase enzyme in the digestive tract. DAO is not absorbed and does not have systemic activity.* This unique enzyme encompasses our immune support, digestive health and gastrointestinal support categories.* DAO supplements formulated to Exclude: Wheat, gluten, corn, yeast, soy, dairy products, fish, shellfish, peanuts, tree nuts, egg, sesame, ingredients derived from genetically modified organisms (GMOs), artificial colors, and artificial sweeteners. Part Number: 300100117Details: HistDAO GI and immune support supplement. This enzyme formula containing diamine oxidase (DAO) - the main enzyme responsible for the degradation of ingested histamine. Unlike a standard digestive enzyme or digestion supplement, this enzyme has been clinically tested and found to break down food-derived histamine in the digestive tract. DAO is not absorbed and does not have systemic activity. HistDAO does not manage or address antibody-related or IgE-related food allergies.*EAN: 0722537512503Package Dimensions: 4.5 x 3.0 x 0.9 inches