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The active enzyme diamine oxidase (DAO), derived from porcine kidney protein extract, breaks down histamine.


Also includes vitamin C and quercetin, which act as natural antihistamines.

Intoleran DAO Plus 50 caps

  • Porcine kidney protein extract (DAO) 4.2mg
    equiv. Diamine oxidase 0.3mg
    Quercetin  38mg
    Ascorbic acid (Vitamin C) 20mg

  • One capsule before each meal; maximum of three capsules daily.

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