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HistaHarmony™ by Healthy Gut helps your body degrade food-derived histamine and maintains healthy DAO levels in the digestive tract.

60 Tablets

* US customers: click here to buy HistaHarmony.


HistaHarmony™ helps your body degrade food-derived histamine and maintains healthy DAO levels in the digestive tract.

If you get fatigued, flushed, or foggy after eating, HistaHarmony, DAO (Diamine Oxidase) enzyme may help.

Healthy Gut formula uses a high-potency DAO backed by 96 patents. They encapsulate the DAO enzyme using the best technology on the market, delivering more DAO where it needs to go in the small intestine. It's also nitrogen packed to keep it as fresh and potent as possible.

  • Powerful DAO enzyme to support the healthy breakdown of histamine
  • Helps reduce histamine reactions and histamine intolerance symptoms
  • Using patented ProDAOX™ with proprietary enzyme-preserving technology
  • Enteric-coated tablets to make sure it makes it to your small intestine intact=


Signs That You May Benefit From HistaHarmony:

  • Sneezing
  • Itching
  • Headaches
  • Flushing Skin
  • Can’t Focus
  • Anxiety
  • Fatigue
  • 'Healthy foods' make you feel worse, especially bone broth, fermented foods, vinegars
  • You feel worse after eating left-overs (histamine accumulates in foods)
  • You have Mast Cell Activation (MCAS) or Mold Toxicity

Read more about Histamine Intolerance here.


How is HistaHarmony Better?

  1. Higher enzymatic activity than any other DAO on the market: A specific enzyme extraction and purification process makes HistaHarmony™ more efficient with higher enzymatic activity than DAO offered by any competitors.
  2. Backed by 96 patents: Researchers in Spain have been working on this specific DAO for over 15 years. Our source has numerous patents backing its therapeutic potential in the dietary management of DAO-deficiency-related conditions.
  3. Superior extraction process: A proprietary, high-tech extraction process is used that preserves the DAO enzyme and delivers 20,000+ Histamine Degrading Units (HDUs) in every tablet. More HDUs = more histamine-digesting power.
  4. Nitrogen-packed to preserve a high potency: DAO enzymes are very fragile molecules. When they’re exposed to oxygen, light, moisture, or stomach acid, they can start to degrade and lose their potency quickly. That’s why Healthy Gut's DAO is nitrogen-packed in individual blister packs. Every tablet is preserved, right up until the moment you need it.
  5. Enteric-Coated technology: HistaHarmony™is the only form of DAO on the market that uses enteric-coated tablet technology proven NOT to activate until it reaches the small intestine. Why is this important? DAO does its dirty work in the small intestine. If not enough DAO is present there, histamine can escape through the intestinal epithelium into the blood. This is where most competitors fail. No matter how potent their DAO is, if they’re not using this same technology, the enzymes will get destroyed by stomach acid before they make it to the small intestine. That means you’d have to take a lot more pills to notice an improvement – or you may not feel anything at all.



For food-related histamine reactions: Take 1 capsule 20 minutes before eating histamine-rich foods.

For gut and full-body histamine support: Take 1 capsule at least 30 minutes away from meals or on an empty stomach when you usually experience histamine-related symptoms. For example, if you get flushed at night, take HistaHarmony™ before bedtime.

If your baseline histamine levels are already running high, you may experience more symptom relief and improved histamine tolerance by taking DAO away from food.

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