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HistDAO™ provides a concentrated source of diamine oxidase (DAO)—the main enzyme responsible for the degradation of ingested histamine. This formula delivers the clinically researched dose of DAO in an easy-to-swallow, gastro-resistant mini-tablet, which is essential for releasing DAO in the small intestine, where it breaks down food-derived histamine. HistDAO does not manage or address antibody-related or IgE-related food allergies.*

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✈︎ Free Shipping Over $50
🗨 24/7 Customer Support
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✈︎ Free Shipping Over $50
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✈︎ Free Shipping Over $50
🗨 24/7 Customer Support
✴ Best Prices Always
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