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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Support healthy aging, detoxification, immune system health, and physical activity with the antioxidative properties found in Liposomal Glutathione.†
Liposomal Glutathione—Contains 100 mg of reduced glutathione packaged in soy-free liposomes to enhance absorption and delivery in every serving.†
SaleBest SellerBOGOWhile Supplies LastLiposomal Glutathione
4.8Rated 4.8 out of 5 stars409 ReviewsFrom $50Key Benefits and Actions† Powerful, well-absorbed, liposomal glutathione Reduced form promotes superior antioxidant activity Supports healthy ...
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Choose a delivery form of vitamin C that enhances absorption while providing extra antioxidant support from plant bioflavonoids. Choose Liposomal Vitamin C Plus!†
Liposomal Vitamin C Plus—A powerful and well-tolerated antioxidant and immune support formula that also contains plant bioflavonoids to support vitamin C utilization and normal histamine synthesis and release.†
SaleBest SellerWhile Supplies LastLiposomal Vitamin C Plus
4.8Rated 4.8 out of 5 stars271 ReviewsFrom $35Key Benefits and Actions† Liposomal Vitamin C for enhanced absorption and GI comfort Extra antioxidant support from bioflavonoids Supports healt...
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Choose a delivery form of vitamin C that enhances absorption and minimizes potential GI side effects. Choose Liposomal Vitamin C!†
Liposomal Vitamin C—A powerful antioxidant and immune support formula providing 1,000 mg of vitamin C per serving and packaged in soy-free liposomes to enhance absorption and delivery.†
Best SellerLiposomal Vitamin C
4.8Rated 4.8 out of 5 stars525 ReviewsFrom $35Key Benefits and Actions† Liposomal vitamin C for enhanced absorption and GI comfort Potent antioxidant support for immune health Supports healt...
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Supports healthy aging, detoxification, immune system, and physical activity with Liposomal Glutathione Plus!†
Liposomal Glutathione Plus—A powerful antioxidant support formula with a liposomal delivery that enhances absorption of the reduced, active form of glutathione and other key nutrients that support glutathione recycling and function.†
Best SellerDiscontinuedLiposomal Glutathione Plus
4.7Rated 4.7 out of 5 stars391 ReviewsFrom $50Key Benefits and Actions† Powerful liposomal glutathione plus nutrients for recycling and utilization Reduced form supports optimal antioxidant ...
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Support healthy aging, detoxification, immune system health, and physical activity with the antioxidative properties found in Liposomal Glutathione.†
Liposomal Glutathione—Contains 100 mg of reduced glutathione packaged in soy-free liposomes to enhance absorption and delivery in every serving.†
SaleBest SellerBOGOWhile Supplies LastLiposomal Glutathione
4.8Rated 4.8 out of 5 stars409 ReviewsFrom $50Key Benefits and Actions† Powerful, well-absorbed, liposomal glutathione Reduced form promotes superior antioxidant activity Supports healthy ...
View full details -
Choose a delivery form of vitamin C that enhances absorption while providing extra antioxidant support from plant bioflavonoids. Choose Liposomal Vitamin C Plus!†
Liposomal Vitamin C Plus—A powerful and well-tolerated antioxidant and immune support formula that also contains plant bioflavonoids to support vitamin C utilization and normal histamine synthesis and release.†
SaleBest SellerWhile Supplies LastLiposomal Vitamin C Plus
4.8Rated 4.8 out of 5 stars271 ReviewsFrom $35Key Benefits and Actions† Liposomal Vitamin C for enhanced absorption and GI comfort Extra antioxidant support from bioflavonoids Supports healt...
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Choose a delivery form of vitamin C that enhances absorption and minimizes potential GI side effects. Choose Liposomal Vitamin C!†
Liposomal Vitamin C—A powerful antioxidant and immune support formula providing 1,000 mg of vitamin C per serving and packaged in soy-free liposomes to enhance absorption and delivery.†
Best SellerLiposomal Vitamin C
4.8Rated 4.8 out of 5 stars525 ReviewsFrom $35Key Benefits and Actions† Liposomal vitamin C for enhanced absorption and GI comfort Potent antioxidant support for immune health Supports healt...
View full details -
Supports healthy aging, detoxification, immune system, and physical activity with Liposomal Glutathione Plus!†
Liposomal Glutathione Plus—A powerful antioxidant support formula with a liposomal delivery that enhances absorption of the reduced, active form of glutathione and other key nutrients that support glutathione recycling and function.†
Best SellerDiscontinuedLiposomal Glutathione Plus
4.7Rated 4.7 out of 5 stars391 ReviewsFrom $50Key Benefits and Actions† Powerful liposomal glutathione plus nutrients for recycling and utilization Reduced form supports optimal antioxidant ...
View full details
-
Support healthy aging, detoxification, immune system health, and physical activity with the antioxidative properties found in Liposomal Glutathione.†
Liposomal Glutathione—Contains 100 mg of reduced glutathione packaged in soy-free liposomes to enhance absorption and delivery in every serving.†
SaleBest SellerBOGOWhile Supplies LastLiposomal Glutathione
4.8Rated 4.8 out of 5 stars409 ReviewsFrom $50Key Benefits and Actions† Powerful, well-absorbed, liposomal glutathione Reduced form promotes superior antioxidant activity Supports healthy ...
View full details -
Choose a delivery form of vitamin C that enhances absorption while providing extra antioxidant support from plant bioflavonoids. Choose Liposomal Vitamin C Plus!†
Liposomal Vitamin C Plus—A powerful and well-tolerated antioxidant and immune support formula that also contains plant bioflavonoids to support vitamin C utilization and normal histamine synthesis and release.†
SaleBest SellerWhile Supplies LastLiposomal Vitamin C Plus
4.8Rated 4.8 out of 5 stars271 ReviewsFrom $35Key Benefits and Actions† Liposomal Vitamin C for enhanced absorption and GI comfort Extra antioxidant support from bioflavonoids Supports healt...
View full details -
Choose a delivery form of vitamin C that enhances absorption and minimizes potential GI side effects. Choose Liposomal Vitamin C!†
Liposomal Vitamin C—A powerful antioxidant and immune support formula providing 1,000 mg of vitamin C per serving and packaged in soy-free liposomes to enhance absorption and delivery.†
Best SellerLiposomal Vitamin C
4.8Rated 4.8 out of 5 stars525 ReviewsFrom $35Key Benefits and Actions† Liposomal vitamin C for enhanced absorption and GI comfort Potent antioxidant support for immune health Supports healt...
View full details -
Supports healthy aging, detoxification, immune system, and physical activity with Liposomal Glutathione Plus!†
Liposomal Glutathione Plus—A powerful antioxidant support formula with a liposomal delivery that enhances absorption of the reduced, active form of glutathione and other key nutrients that support glutathione recycling and function.†
Best SellerDiscontinuedLiposomal Glutathione Plus
4.7Rated 4.7 out of 5 stars391 ReviewsFrom $50Key Benefits and Actions† Powerful liposomal glutathione plus nutrients for recycling and utilization Reduced form supports optimal antioxidant ...
View full details
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