Welcome, Histamine Intolerance Facebook Group — Your Exclusive Offer
FREE HistaSOLV® Sample
Completely free — we even cover shipping (a $20.00 value)
Why HistaSOLV?
- #1 in Europe, 20 years leading the science of DAO enzymes.
- Air degrades DAO. Capsules in a bottle can lose potency, our tablets are nitrogen-sealed to stay potent.
- Patented coating protects from stomach acid so DAO reaches your small intestine, where it works best.

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Proven Results—Consumer Reviews
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Quick relief! Way faster than others I’ve tried.
They say it works within 15 minutes and it was right! Others I have tried take hours to work and don’t last long. This product was great. I was able to eat foods that usually bother my stomach! Thank you!
— CW
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No issues after eating what I love.
My favorite dessert is ice cream and it wreaks havoc on my stomach. I took this beforehand and ate Apple Pie A La Mode and had no issues. I'll continue to try this before certain foods. It definitely helped.
— Dimes
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Good Quality!
I usually stay away from food that doesn't agree with my body. I like these pills because the pills are small and easy to take. They have no aftertaste, and I didn't get any bad reaction.
—Zizi
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No more bloating.
My tummy always get hard when I eat oily food. So I take this an hour before eating out. It does help. No more bloating and no more belly pain. I also go after 4 hours. I can tell this helps digest the food better and faster. I am happy with the result.
— LV
FAQ's
What is HISTAsolv?
HISTAsolv is made with a natural enzyme Diamine Oxidase, essential for the breakdown of histamine, helping you enjoy the foods & drinks you love. Our DAO comes from a purified porcine source, recognized as a highly effective natural form for supporting healthy histamine metabolism.
What are the common symptoms of histamine intolerance?
Some common symptoms of histamine intolerance include headaches, fatigue, stomach upset, gas & bloating, loose stools, skin irritation, watery eyes, and runny nose.
Does HISTAsolv work for food allergies?
No. HISTAsolv is not designed to prevent or treat symptoms of food allergies. Do not take HISTAsolv and knowingly eat any foods you are allergic to—it will not prevent an allergic reaction.
How does HISTAsolv work?
With an extra strength of 36,000 HDUs, the supplement works to boost DAO enzyme in the small intestine, enhancing histamine breakdown naturally, and improving tolerance to histamine-rich foods & alcohol.
How do I take HISTAsolv?
1. Take 1 tablet 15 minutes before meals.
2. Now enjoy the foods you love.
3. The DAO enzyme activates when histamine-containing food reaches the intestine.
4. Do not exceed 3 tablets daily.
Not for food or environmental allergies; supports dietary histamine intolerance.
Is HISTAsolv gluten-free?
Along with being free from gelatin, histamine, lactose, and fructose, the tablets are also gluten-free and do not contain any artificial colors, minimizing the risk of adverse reactions. HISTAsolv is made in a nut-free facility.
Are there any precautions?
It is absolutely necessary to take HISTAsolv before food (ideally about 15 minutes before). After this time, the tablet should have already dissolved and the DAO contained will be active by the time the food containing histamine reaches the intestine. The tablet should not be chewed, it should be swallowed whole to allow the contents to pass through the stomach and reach the intestine without being affected. If you are taking medications regularly, ask your doctor or pharmacist if any of the active substances contained in these medications can reduce the breakdown of histamine. Alcohol can substantially inhibit the activity of the DAO enzyme. Do not exceed the recommended daily dose. Keep out of reach of small children.
How do you store the product?
Store HISTAsolv in a cool, dry place away from light.
What are the ingredients of HISTAsolv tablets?
Diamine Oxidase
OTHER INGREDIENTS: microcrystalline cellulose, maltodextrin, sodium phosphate, cross-linked sodium carboxy methyl cellulose, food grade shellac, silicon dioxide, hydroxypropyl methyl cellulose, calcium carbonate, magnesium salts of fatty acids, fully hydrogenated vegetable fat (coconut), polydextrose, anti-caking agent talc, polyethylene glycol.
Free of Allergens
HOW EXTRA-STRENGTH HISTAsolv WORKS?
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HISTAsolv’s patented protective coating shields our delicate natural DAO enzyme from damaging stomach acid, ensuring you get maximum potency.
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HISTAsolv DAO enzyme rapidly arrives in the small intestine, ready to reinforce the body’s natural DAO production and neutralize excess histamine. Fast!
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HISTAsolv naturally promotes a healthy histamine balance whenever your body needs a little extra help, helping you to enjoy more of the foods you love.


