Dr. William Stone, DC, CHHC
Certified Nutritional Consultant
Iris Analysis Practitioner | Holistic Health Expert
This is a professional-grade product. Purchase requires prior guidance from a qualified healthcare practitioner or a consultation with one of ours.
If you’ve already been advised to use this product, are currently taking it, or have worked with a practitioner before, simply log in or create an account to continue.
To schedule a consultation with our very own Dr. William Stone or
Maria Tabone,
please call 1-800-622-8877 ext. 1 for assistance.
Certified Nutritional Consultant
Iris Analysis Practitioner | Holistic Health Expert
Integrative Nutritionist | Functional Nutrition Coach
Ayurveda Practitioner | Herbalist

Ortho Molecular Products DAO Enzyme delivers targeted diamine oxidase (DAO) support to help the body naturally metabolize histamine from foods and beverages. DAO is an enzyme primarily active in the digestive tract and plays an important role in breaking down dietary histamine before it is absorbed.
Each capsule provides DAOgest® porcine kidney extract supplying 30,000 HDU of DAO activity to help support individuals seeking additional histamine-processing support as part of a balanced wellness routine. This focused formula is designed for convenient daily use and complements gastrointestinal health protocols.
Take 1 capsule before meals or as directed by your healthcare professional.
Hypromellose capsule, microcrystalline cellulose, silicon dioxide, and magnesium stearate.
Do not use if pregnant or nursing unless directed by your healthcare professional. Consult your healthcare professional before use if you have a medical condition or are taking medication. Keep out of reach of children.
| Supplement Facts | ||
| Serving Size: 1 Capsule | ||
| Servings Per Container: 60 | ||
| Amount Per Serving | % Daily Value | |
|---|---|---|
| Porcine Kidney Extract (DAOgest®) (providing 30,000 HDU Diamine Oxidase (DAO)) |
4.2 mg | * |
* Daily Value (DV) not established. | ||