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Diamine Oxidase (DAO) - Histamine Degrading Enzyme

Diamine Oxidase (DAO) - Histamine Degrading Enzyme

Regular price $49.00 USD
Regular price Sale price $49.00 USD
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  • Created by Scientists
  • Powerful Formulations
  • Free USA Shipping Over $40

Diamine oxidase (DAO enzyme) is a histamine degrading enzyme that is commonly low in people with histamine intolerance, either through hindered production or genetic deficiency.

DAO is responsible for breaking down histamine in the body. If DAO levels are low, histamine will not be properly degraded, causing levels of histamine in the body to become too high and produce histamine intolerance symptoms.

DAO specifically targets histamine ingested through food or environmental exposures, therefore insufficient levels of DAO can result in reactions to histamine-containing foods, products and even contribute to seasonal allergies.

Supplementing with DAO has shown to assist with breaking down histamine in the body to reduce overall histamine levels. This process can improve symptoms for those experiencing histamine intolerance related issues.

This supplement is manufactured in the USA using only the highest quality ingredients. It is tested for potency and purity to guarantee quality and efficacy.


    Supplement Info

    Suggested Use:

    Take 2 capsules 15 minutes before consuming meals containing histamine, or as directed by a healthcare practitioner.

    Store tightly sealed in a cool, dry place.

     Dietary considerations:

    • Gluten Free
    • Non-GMO
    • Wheat Free
    • Dairy / Milk Free
    • Soy Free
    • Yeast Free
    • Sugar Free
    • Hydrogenated Oil Free
    • Corn Free
    • Free of Artificial Colors / Flavors


    We offer free 2-5 day standard shipping on all USA orders over $40.

    Expedited shipping also available.

    Other areas from 5-15 business days, depending on location.

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    • Scientifically Formulated

      Each unique blend is scientifically formulated using only the highest quality raw materials.

    • Made in USA

      Manufactured in the USA and GMP certified to preserve quality standards.

    • Third-party Tested

      Third party tested to ensure our products are as powerful as they claim.

    Why I Created My Own Supplements

    I’m Anita, the nutritional scientist behind Unitee!

    Unitee is the world’s first supplement line made specifically for histamine intolerance. For nearly a decade, I’ve helped people to solve histamine intolerance, naturally.

    Before Unitee, I would cherry-pick supplements from brands that just happened to carry a histamine-safe product or two. I was constantly double checking if each brand had changed ingredients, sold out or discontinued their products.

    It often left people having to wait for or part with supplements they relied upon. Your body deserves better, and you deserve a brand to count on.

    After years of experience formulating for some of the world’s greatest supplement brands, I decided to create Unitee: a clean, science-backed, high quality supplement line made solely for histamine intolerance.

    Customer Reviews

    Based on 17 reviews

    Contains grains that I CAN’T eat and they were very uncaring when I asked if they had plans to make a grain-free line.

    Courtney Novak
    Really helps

    This really helps calm down the reactions when consuming foods that you know will cause inflammation

    Carol Maddox


    Effective and reliable relief

    DAO reliably assists with food reactions, helping to reduce their severity and make meals more enjoyable. It's a great choice to consider for managing histamine-related food sensitivities.

    Highly recommended for histamine intolerance sufferers

    This is awesome! Made right here in the USA with high-quality ingredients and tested to make sure it's the real deal. You can trust that what you're getting is pure and effective. When it comes to your health, that stuff matters. So if you're looking for a supplement you can rely on, give this one a try. It's worth every penny!