HistDAO™ provides a concentrated source of diamine oxidase (DAO)—the main enzyme responsible for the degradation of ingested histamine. This formula delivers the clinically researched dose of DAO in an easy-to-swallow, gastro-resistant mini-tablet, which is essential for releasing DAO in the small intestine, where it breaks down food-derived histamine. HistDAO does not manage or address antibody-related or IgE-related food allergies.*

Supports Healthy Degradation of Food-Derived Histamine*
Enhances the Presence of Diamine Oxidase in the Digestive Tract*

Suggested Use: 
Take one tablet no more than 15 minutes before the consumption of histamine-rich foods, or take as directed by your healthcare professional. 

Serving Size: 1 Tablet 

Amount Per Serving 
Pig Kidney Extract … 4.2mg
(providing 20,000 HDU diamine oxidase (DAO))

Other Ingredients: Microcrystalline cellulose, hydroxypropyl cellulose, coating (ethylcellulose, sodium alginate, hydroxypropyl methylcellulose, medium-chain triglycerides, stearic acid, oleic acid, and microcrystalline cellulose), sodium starch glycolate, and magnesium stearate. 

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. 

Trademarks:DAO Enzyme manufactured by DR HEALTHCARE, S.L.U., for XYMOGEN under Patents

Consult your healthcare professional before use. Individuals taking medication should discuss potential interactions with their healthcare professional.