DAO enzyme capsules DAOgest 90 capsules - Seeking Health
DAO enzyme ingredients DAOgest
DAO enzyme capsules DAOgest 90 capsules - Seeking Health
DAO enzyme capsules DAOgest 90 capsules - Seeking Health
DAO enzyme ingredients DAOgest
DAO enzyme capsules DAOgest 90 capsules - Seeking Health
DAO enzyme ingredients DAOgest
DAO enzyme capsules DAOgest 90 capsules - Seeking Health
DAO enzyme capsules DAOgest 90 capsules - Seeking Health
DAO enzyme ingredients DAOgest

SEEKING HEALTH

DAO Enzyme 90 capsules.

The enzyme diamine oxidase as DAOgest®, with 30,000 HDU per capsule. One capsule as needed, just before eating or drinking.

Why this product?

30,000 HDU diamine oxidase per capsule

DAOgest®, from European porcine kidney extract

1 capsule just before eating

Only the enzyme, without vitamins or herbs

90 capsules, not vegetarian

€89,95
€0,00 EUR €89,95
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90 capsules · as needed · €1.00 per capsule
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DAO enzyme - Diamine Oxidase - 90 capsules

DAO Enzyme 90 capsules.

Order before 22:00, processed the same day
Free shipping from €85.00
Money-back guarantee
€89,95
€0,99 per serving
Story
Overview
Ingredients
How to use
Reviews
Claims
Brand
FAQ
01 / The story

Only the enzyme, at high activity.

01, The story
02, Form & figures
03, Ingredients & dosage
04, What we may claim
05, Quality & production
06, Frequently asked questions
Reading time · 5 min

DAO Enzyme by Seeking Health contains only the enzyme diamine oxidase, as DAOgest® from European porcine kidney extract, with 30,000 HDU per capsule. One capsule just before eating or drinking, as needed.

Histaminase

In 1930 the Canadian researchers Charles Best, co-discoverer of insulin, and Edward McHenry described an enzyme that breaks down histamine. They called it histaminase. Today it is called diamine oxidase, after the group of substances it breaks down, which have two amine groups.

Made in the United States

Seeking Health has DAO Enzyme made in the United States according to GMP. The enzyme is DAOgest®, obtained from porcine kidney of European origin. The capsule itself is plant-based, but because of the enzyme the product is not vegetarian.

Facts about this formula

One capsule provides 30,000 HDU, twice as much as the daily dose of Histamine Nutrients. The capsule may be opened and the contents sprinkled over a bite of food. A jar contains 90 capsules. The product was previously called Histamine Digest.

DAO Enzyme with DAOgest® diamine oxidase enzyme

Do you struggle with breaking down histamine? Then DAO Enzyme (formerly Histamine Digest) can be a valuable addition, allowing you to eat and drink with confidence again without any hassle. This support helps you prevent uncomfortable symptoms, so you can enjoy your meals without worry.

Foods that may cause histamine issues

Do you notice symptoms after consuming certain foods or drinks? Take a look at the following list: alcohol, especially red wine or champagne; aged cheeses (e.g. Parmesan, Gouda, Swiss, Cheddar); cured meats (e.g. salami, pepperoni, tinned meat, sausages, dried meat); fish; tomatoes; orange juice; pineapple juice; very ripe fruit (e.g. strawberries, bananas); avocados; sauerkraut, kimchi; balsamic vinegar; kombucha; leftovers.

Do you recognise yourself?

If you notice that you react differently to one or more of these products, without it being a true allergy, DAO Enzyme may offer a solution. Try the product and find out whether it improves your histamine breakdown.

The main ingredient in DAO Enzyme

DAOgest® (diamine oxidase) is the patented enzyme from porcine kidney extract used in DAO Enzyme. This enzyme, sourced from Europe, supports the natural breakdown of histamine in your body, particularly in the small intestine, but also in the large intestine, placenta, kidneys, appendix, testes and prostate. DAO is a natural molecule that occurs both in your body and in food.

How does DAO Enzyme work?

After you have taken a small DAO Enzyme capsule, it opens in the small intestine. The released DAO enzyme immediately starts breaking down histamine, whether it comes from your diet or is produced by your body itself.

About Seeking Health

Seeking Health stands for quality and carefully formulated products. The products are free from GMOs and common allergens. Ben Lynch, founder of Seeking Health, combines his expertise in naturopathy, molecular biology and epigenetics to develop innovative supplements. In his book Dirty Genes, he shares his insights into how diet and lifestyle can optimise gene expression.

02 / Form & figures

Figures from the label.

Per capsule, as stated by Seeking Health.

30.000
HDU diamine oxidase
Per capsule.
4,2 mg
Porcine kidney extract
As DAOgest®.
1
Capsule per serving
Just before eating or drinking.
90
Capsules
Per jar.
Ingredients and use

Per capsule.

Per capsule Amount %RI Form
Diamine oxidase (DAO) 4.2 mg* DAOgest® porcine kidney extract, 30,000 HDU

Label · other ingredients: microcrystalline cellulose, plant-based capsule (hypromellose, water, gellan gum), ascorbyl palmitate · dosage: 1 capsule as needed before eating or drinking; the capsule may be opened · contains porcine kidney extract, not vegetarian · net contents 90 capsules

Product information

How to use it. And everything on the label.

How to use

  1. 1

    Take one capsule before eating or drinking as needed.

  2. 2

    The capsule can also be taken outside of meals, for example, for menstrual discomfort or to support general digestive comfort.

  3. 3

    The capsule may be opened and the contents sprinkled over a mouthful of food.

  4. 4

    Use as directed by a healthcare professional.

Contents
90 capsules
Allergens
None
Other ingredients
Microcrystalline cellulose, vegetable capsule (hypromellose, water and gellan gum), ascorbyl palmitate
Storage
Store in a cool, dry and dark place.
Do not exceed the recommended daily dose.
Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.
Keep out of the reach of young children.
* RI = reference intake according to European standards.

Reviews

What we may claim

For DAO we may claim nothing.

Framework
EU 432/2012
EFSA register
Subject
Diamine oxidase
(no claims)

In Europe, we may only make health claims about food supplements that have been assessed and authorised by the EFSA and are listed in the official EU register.

For the enzyme diamine oxidase, there is nothing in that register. That is why on this page we only describe what the enzyme is, where it comes from and how much activity a capsule has.

No authorised claims
Diamine oxidase
Regulation 1924/2006

This page makes no statement about what diamine oxidase does in your body.

There are no authorised health claims for the enzyme DAO, and there is no claim on hold either. What you can read here: what the enzyme is, which source it comes from and how much activity a capsule has.

Framework: Regulation (EC) No 1924/2006 and Regulation (EU) No 432/2012.

AND WHAT WE ARE NOT ALLOWED TO SAY
  • -
    No claim whatsoever about curing, preventing or treating diseases. A supplement is not a medicine and we do not present it as one.
  • -
    No substitute for medical advice. If you take medication, are pregnant or have a medical condition, consult your doctor.
  • -
    No substitute for a varied diet. A supplement is an addition to healthy eating, not an alternative.
AWAITING ASSESSMENT

A scientific assessment by the EFSA is still ongoing for a number of plant substances. Claims for these may be used under a transitional arrangement and are marked on this page as on hold.

Claims according to Regulation (EU) No 432/2012 · EU register of nutrition and health claims · valid at the recommended daily dosage · last checked 14 Mar 2026.

Professionally reviewed

Read and checked by a fellow professional.

Diederik Jansen

Independent researcher · editorial review

The content of this page has been checked for factual accuracy, from the composition to compliance with the European rules on health claims.

The content of this page has been checked for factual accuracy, from the composition to compliance with the European rules on health claims.

Reviewed
Oct 2026

Next
review
Oct 2027

Curator's note
Only the enzyme DAO, with 30,000 HDU per capsule.
Selected by Ergomax

Diamine oxidase as DAOgest®, with no vitamins or herbs alongside it. Intended to be taken as needed just before a meal.

The enzyme comes from porcine kidney, so the product is not suitable for vegetarians and vegans.

About the brand

Seeking Health, briefly explained.

Seeking Health

Nutrition that fits your genes.

Seeking Health was founded by Ben Lynch, naturopathic doctor and author of Dirty Genes. He studied at Bastyr University in Washington and has worked for years with doctors and health professionals who apply insights from epigenetics. His starting point: your genes are not a fixed fate, and with diet and lifestyle you can work with them. Seeking Health is best known for active forms of vitamins, such as methylfolate and methylcobalamin, and for methyl-free variants for those who are sensitive to them.

All products from Seeking Health
Quality and production

Active forms, clear choices.

Seeking Health opts for vitamins in the form in which the body uses them and offers a methyl-free variant of many formulas. The products are made in the United States according to GMP and are free of the most common allergens. Some of the raw materials are branded ingredients, such as Quatrefolic® (methylfolate) and MecobalActive® (methylcobalamin).

Forms 01
Active vitamins
Such as Quatrefolic® and MecobalActive®
Wherever possible, Seeking Health uses vitamins in the form the body can use directly: folate as L-methylfolate or folinic acid instead of folic acid, vitamin B12 as methylcobalamin, hydroxocobalamin or adenosylcobalamin and vitamin B6 as pyridoxal 5-phosphate. Some of these are branded ingredients, raw materials that a specialised supplier delivers under its own brand name: folate as Quatrefolic® and vitamin B12 as MecobalActive®. Energy Nutrients also contains PEAK ATP® and Emothion® (S-acetyl-L-glutathione).
Choice 02
Methyl or methyl-free
MF variants without methyl groups
Not everyone tolerates formulas with methyl groups equally well. That is why Seeking Health offers an MF variant, methyl-free, of many products, with folinic acid and hydroxocobalamin, for example. That way you can choose what suits you.
Purity 03
Without common allergens
No gluten, dairy or soy
The formulas are free of gluten, dairy and soy and contain no artificial colourings or flavourings. The label of each product states which allergens may be present, such as milk in a whey protein.
Production 04
Made in the USA
According to GMP
The supplements are produced in the United States, in facilities that work according to GMP, the guidelines for good manufacturing practice.
08 / Frequently asked questions

What you still wanted to know.

Take 1 capsule as needed just before eating or drinking. The capsule may also be taken between meals, and you may open it and sprinkle the contents over a bite of food.

No. The enzyme DAOgest® is obtained from porcine kidney. The capsule itself is plant-based. If you are looking for a plant-based formula, take a look at HistaminX.

HistaminX contains flavonoids, bromelain and nettle and no enzyme. Histamine Nutrients combines the enzyme DAO (15,000 HDU per 2 capsules) with B vitamins, vitamin C, zinc, copper, SAMe and PQQ. DAO Enzyme contains only the enzyme, with 30,000 HDU per capsule.

HDU stands for Histamine Degrading Units: a measure of the enzyme's activity, not its weight. One capsule contains 4.2 mg DAOgest® with 30,000 HDU.

That depends on how often you take a capsule: DAO Enzyme is used as needed, not on a fixed schedule. A jar contains 90 capsules.

Can't find your question? We're happy to help.
Call customer service →
09 / Combines well with

A routine, not a standalone product.

DAO Enzyme contains only the enzyme. Histamine Nutrients adds vitamins, minerals, SAMe and PQQ.

DAO enzyme capsules DAOgest 90 capsules - Seeking Health
DAO Enzyme
Histamine Nutrients - 60 capsules from Seeking Health, supports a healthy histamine response.
Histamine Nutrients
Histamine routine

DAO Enzyme and Histamine Nutrients.

  • Vitamin C contributes to the normal function of the immune system
  • Zinc contributes to the normal function of the immune system
The claims mentioned apply to the vitamin C and zinc in Histamine Nutrients, are authorised by the EFSA and apply at the recommended daily dose.
€159,90

DAO Enzyme €89,95 + Histamine Nutrients €69,95