Dirty Genes® - DAO Support
Your DAO gene makes an enzyme known as diamine oxidase (also called DAO). DAO enzymes are necessary for processing histamine, a chemical in your body that gets released in response to some foods or inflammatory situations. Gut bacteria can also produce histamine.
Your DAO gene makes an enzyme known as diamine oxidase (also called DAO). DAO enzymes are necessary for processing histamine, a chemical in your body that gets released in response to some foods or inflammatory situations. Gut bacteria can also produce histamine.
While you need some histamine, if your body does not have enough DAO, your histamine reactions to foods and common environmental exposures will seem more pronounced. You might feel itchy, sneezy, get rashes, hives, or experience bloating. Histamine intolerance can be common but is not a food allergy. It simply means that your body needs more DAO enzyme. (Food allergies are different, serious reactions. Supplementing with DAO does not help these.)
Nutrients that support healthy DAO activity include vitamin C, quercetin, vitamin B6, magnesium, and DAO enzyme supplements.
To support healthy DAO levels and healthy histamine levels, you can take a DAO supplement and other supportive cofactors. Histamine Digest and Histamine Block Plus are Seeking Health’s supplements that promote a healthy response to ingested histamine. ProBiota HistaminX is a gut health supplement to help promote a healthy digestive tract and intestine response to histamine.
Get started with DAO gene supplements today. Use this comparison chart to decide which histamine products are right for you.

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Eat and drink confidently by supporting healthy histamine levels with Histamine Digest™!†
Histamine Digest™—Contains the patented DAOgest® enzyme to support healthy histamine breakdown in the small intestine, colon, placenta, kidney, appendix, testis, and prostate.†
Histamine Digest™
4.8Rated 4.8 out of 5 stars616 ReviewsFrom $38Key Benefits and Actions† Digest histamine fast using the patented DAOgest® enzyme Be confident and relaxed when eating and drinking Supports h...
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Be kind to your gut while supporting its health with the low-histamine formula of ProBiota™ HistaminX™!†
ProBiota™ HistaminX™—A unique probiotic supplement designed specifically for those sensitive to histamine that contains histamine-friendly probiotics in an acid-resistant capsule.†
Best SellerProBiota™ HistaminX™
4.8Rated 4.8 out of 5 stars1,303 ReviewsFrom $40Key Benefits and Actions† Histamine-friendly probiotic formulated without strains known to produce high levels of histamine Supports microbiome ...
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Eat and drink confidently by supporting healthy histamine levels with Histamine Digest™!†
Histamine Digest™—Contains the patented DAOgest® enzyme to support healthy histamine breakdown in the small intestine, colon, placenta, kidney, appendix, testis, and prostate.†
Histamine Digest™
4.8Rated 4.8 out of 5 stars616 ReviewsFrom $38Key Benefits and Actions† Digest histamine fast using the patented DAOgest® enzyme Be confident and relaxed when eating and drinking Supports h...
View full details -
Be kind to your gut while supporting its health with the low-histamine formula of ProBiota™ HistaminX™!†
ProBiota™ HistaminX™—A unique probiotic supplement designed specifically for those sensitive to histamine that contains histamine-friendly probiotics in an acid-resistant capsule.†
Best SellerProBiota™ HistaminX™
4.8Rated 4.8 out of 5 stars1,303 ReviewsFrom $40Key Benefits and Actions† Histamine-friendly probiotic formulated without strains known to produce high levels of histamine Supports microbiome ...
View full details
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Eat and drink confidently by supporting healthy histamine levels with Histamine Digest™!†
Histamine Digest™—Contains the patented DAOgest® enzyme to support healthy histamine breakdown in the small intestine, colon, placenta, kidney, appendix, testis, and prostate.†
Histamine Digest™
4.8Rated 4.8 out of 5 stars616 ReviewsFrom $38Key Benefits and Actions† Digest histamine fast using the patented DAOgest® enzyme Be confident and relaxed when eating and drinking Supports h...
View full details -
Be kind to your gut while supporting its health with the low-histamine formula of ProBiota™ HistaminX™!†
ProBiota™ HistaminX™—A unique probiotic supplement designed specifically for those sensitive to histamine that contains histamine-friendly probiotics in an acid-resistant capsule.†
Best SellerProBiota™ HistaminX™
4.8Rated 4.8 out of 5 stars1,303 ReviewsFrom $40Key Benefits and Actions† Histamine-friendly probiotic formulated without strains known to produce high levels of histamine Supports microbiome ...
View full details
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Support the healthy conversion of fat into energy with Acetyl-L-Carnitine.†
Acetyl-L-carnitine—A unique, bioavailable amino acid that supports healthy energy production, brain and nervous system function, and fat metabolism.†

Acetyl-L-Carnitine
Key Benefits and Actions† Supports conversion of fat into energy Supports healthy heart, brain, muscle, and sperm function Supports athletic per...
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