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Protocols For Health, DAO-Hist 60 Capsules
Protocols for Health, DAO-Hist 60 Capsules Ingredients
Protocols for Health, DAO-Hist 60 Capsule
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Protocols For Health, DAO-Hist 60 Capsules

Protocols For Health
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DAO-Hist 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. DAO-Hist does not manage or address antibody-related or IgE-related food allergies.*

Histamine is a bioactive or “vasoactive” amine produced in the body in response to an injury or foreign substance. It has an array of physiological effects, including increasing blood supply to specific sites in the body. In addition, histamine is involved in the immune response, regulation of gastric acid, the permeability of blood vessels, contraction of muscles, and the typical response to inflammation. The highest concentrations of histamine in the body are found in the gastrointestinal tract, lungs, and skin, with lesser amounts in the brain and heart.*

Cytokine Balance Support, Immune System Support, Gastrointestinal Support

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


Supplement Facts:

Serving Size: 2 Capsules
Servings Per Container: 30

Amount Per Serving:

Ingredients Amount % Daily Value
Diamine Oxidase (from porcine kidney protein concentrate) 600 mcg (20,000 HDU) **
** Daily Value not established.
All Formulas Meet or Exceed cGMP Quality Standards.

Other Ingredients:

Microcrystalline cellulose, HPMC (capsule), sucrose, ascorbic acid, rice starch, shellac, hydroxypropyl cellulose, polyvinylpolypyrrolidone, hydrated magnesium silicate, acetylated corn starch, sodium carboxymethylcellulose, and glycerol.


Take one to two capsules no more than 15 minutes before consuming histamine-rich foods, or take as directed by your healthcare professional.

Consult your healthcare professional prior to use. Individuals taking medication should discuss potential interactions with their healthcare professionals. Avoid if allergic to pork or any other ingredient. DAO-Hist 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. Do not use if the tamper seal is damaged.


Keep closed in a cool, dry place out of reach of children.

Formulated To Exclude:

Wheat, gluten, yeast, soy, dairy products, fish, shellfish, peanuts, tree nuts, eggs, artificial colors, artificial sweeteners, and artificial preservatives.