HistDAO supports healthy degradation of food-derived histamine.

Patented enzyme formula containing diamine oxidase (DAO).

Soy Free Product

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Clinically tested and found to break down food-derived histamine in the digestive tract.

DAO is not absorbed and does not have systemic activity and does not manage or address antibody-related or IgE-related food allergies.

  1. Supports Healthy Degradation of Food-Derived Histamine.
  2. Enhances the Presence of Diamine Oxidase in the Digestive Tract.
Serving Size: 2 Capsules
Servings Per Container: 30
Amount Per Serving %Daily Value
Diamine Oxidase (from porcine kidney protein concentrate)
540 mcg (18,000 HDU) **