HistDAO *DISCONTINUED* see HistDAO tablets

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 theconsumption of histamine-rich foods, or take as directed by your healthcarepractitioner. CAUTIONS: Consult your healthcare practitioner before use,