Solaray DAO Enzyme is a dietary supplement designed to support the body’s natural processing of dietary histamine. It supplies a plant-based source of diamine oxidase (DAO) to assist with histamine metabolism in the gastrointestinal tract.*
Formulated for those who may benefit from extra enzymatic support when consuming higher-histamine foods, this formula offers a clean, vegan-friendly option using pea sprout–derived DAO in enteric-protected capsules.

Key Features / Ingredients

• DAO (Diamine Oxidase) from Pea Sprout (4.2 mg, supplying ~60,000 HDU) — the active enzyme component intended to degrade histamine in the gut.

• Enteric Shield VegCaps – a protective capsule layer to help the enzyme survive stomach acid and reach the small intestine.

• Minimal excipients: cellulose, silica, vegetable cellulose capsules.

• Vegan, lab-verified, gluten-free, and made without soy.

Disclaimers

• These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

• Consult your healthcare practitioner before using this product, especially if you are pregnant, nursing, taking medications, or have any medical condition.

• Keep out of reach of children.

• Do not exceed suggested use.

• If any adverse reaction occurs, discontinue use and consult your physician.

Directions for Use

Take 1 VegCap with water, three times daily with meals (or as directed by a qualified health professional). Store in a cool, dry place. Do not exceed the recommended dose.

Clinical / Research Highlights

• DAO supplementation is a recognized approach for supporting the breakdown of dietary histamine in the gut, especially in contexts of histamine sensitivity

• There is limited clinical data on this specific formulation; most research is on DAO enzyme use in general, or histamine-related pathways.