HistoDAO™ is a patented enzyme formula containing diamine oxidase (DAO)—the main enzyme responsible for the degradation of ingested histamine. 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.*
Serving Size: 2 Capsules
Amount Per Serving
Vitamin C (as ascorbic acid) 20 mg
Diamine Oxidase (from porcine kidney protein concentrate) 20,000 HDU
Other Ingredients: Microcrystalline cellulose, HPMC (capsule), sucrose, rice starch, shellac,
hydroxypropylcellulose, polyvinylpolypyrrolidone, hydrated magnesium silicate, acetylated corn starch,
sodium carboxymethylcellulose, and glycerol.
DIRECTIONS: Take one to two capsules no more than 15 minutes before the
consumption of histamine-rich foods, or take as directed by your healthcare
CAUTIONS: Consult your healthcare practitioner before use, especially if you are
pregnant or nursing. Keep out of reach of children. Avoid if allergic to pork or any
other ingredient. HistDAO™ is NOT EFFECTIVE for symptoms of immune-related
food allergies, such as peanuts, shellfish, etc., or for gluten intolerance due to
sensitivity or celiac disease.
DOES NOT CONTAIN: Wheat, gluten, yeast, soy, dairy products, fish, shellfish,
peanuts, tree nuts, egg, ingredients derived from genetically modified organisms
(GMOs), artificial colors, artificial sweeteners, or artificial preservatives.