DAO Enzyme
Bloating after meals. Headaches after wine. Flushing after leftovers. Sound familiar? DAO Enzyme supports healthy histamine breakdown so you can enjoy the foods you love with comfort and confidence.
Why I Formulated DAO Enzyme
This one is personal. My entire family carries genetic variations in the DAO gene. This means we all produce less diamine oxidase enzyme than we need. That translates to a reduced ability to process histamine. Growing up, we lived with the consequences. Nosebleeds. Eczema. Loose stools. Headaches after certain meals. We just thought that was normal.
Once I understood the biochemistry, everything clicked. Our DAO enzyme simply couldn't keep up with the histamine coming in from food, drinks, and our own gut bacteria.
When I learned that supplemental DAO enzyme existed, I was genuinely excited. Finally, a way to directly support what our bodies weren't doing well on their own.
The problem was finding one that actually worked. Most DAO enzyme supplements on the market are weak in performance and loaded with questionable inactive ingredients. I tried several for my family and the results were inconsistent at best. It wasn't until I switched to DAOgest®, a cleaner, patented, and lab-tested DAO enzyme derived from porcine kidney extract, that we experienced real, consistent results. My kids could eat without the nosebleeds. My wife's head felt clear after dinner. I stopped dreading leftovers.
That's why I put DAOgest® in DAO Enzyme. Because my family uses this. And I wouldn't put anything in a Seeking Health product that I wouldn't give to my own children.
How to Use It
With meals: Take 1 capsule before eating or drinking anything high in histamine such as aged cheeses, wine, fermented foods, cured meats, leftovers, citrus, or overly ripe fruit. This is the most common use and where most people notice the most support.
On an empty stomach: This is the one most people miss and is actually quite a genius trick. Your gut bacteria and your gut's immune system also produce histamine. If you have dysbiosis, SIBO, or an overactive gut immune response, try taking 1 capsule on an empty stomach. If you feel better within 30 minutes, that tells you your microbiome or gut immune system is producing excess histamine. Continue using it this way as needed.
For children: Ages 4 and up. Open the capsule and sprinkle on a bite of applesauce if they can't swallow it.
During pregnancy: With your healthcare professional's approval. Your placenta produces massive amounts of DAO but not until the 2nd trimester, which is exactly when most morning sickness eases. Supporting healthy histamine levels during the 1st trimester may support comfort.
While breastfeeding: Histamine from your gut absorbs into breast milk. Infant colic is associated with higher histamine levels in breast milk. Supporting your own histamine balance may support comfortable feeding for your baby.
When to Reduce or Stop
DAO Enzyme is what I call a palliative supplement. It provides the enzyme your body needs right now, but it doesn't fix the underlying reason your DAO may be low. The goal is to heal your gut lining, rebalance your microbiome, and calm your immune system so your body's own DAO enzyme works well on its own.
As you make progress in those areas, you'll naturally need less DAO Enzyme. Some people go from taking it at every meal to only when they eat out or travel. Others find they eventually only need it during high-histamine seasons or stressful periods. Let your body guide you.
If your stools become harder to pass, that's a sign you may be taking too much. High histamine in the gut is associated with loose stools so when you lower it effectively, things can firm up more than expected. Simply reduce your dose to mealtimes only, or take a break. If things normalize, adjust accordingly.

Supplement Facts
Serving size: 1 capsule
| Amount per capsule | % DV | |
|---|---|---|
| DAOgest® porcine kidney extract (Diamine Oxidase Activity 10,000 HDU) | 4.2 mg | * |
* Daily Value (DV) not established.
Other ingredients: microcrystalline cellulose, vegetarian capsule (hypromellose, water, and gellan gum), ascorbyl palmitate
Suggested Use: Adults take 1 capsule daily with food.
Storage: Store in a cool, dry place.
Just 3 Simple Steps Towards
A Healthier You
Easy ordering at your fingertips

Order today
Add the products you need from our online store and proceed to checkout.

We Ship With in 24 Hours
We ship within 24 hours excluding weekends and holidays. Tracking information will be sent to you via email.

Be Healthy & Happy
Optimize your health with our high-quality nutritional products and expert guidance.
A DIFFERENT KIND OF PHARMACY WHERE YOU'RE NEVER JUST A NUMBER
Trusted Reputation, Expertise, and Personalized Support
KNOWLEDGEABLE STAFF
- Expert pharmacists, nutritionists, herbalists, clinicians, and more.
- Personalized guidance tailored to each customer's unique needs.
- In-depth knowledge of drug, nutrient, herb interactions and depletions
Our integrative pharmacy offers comprehensive information on nutritional supplements, as well as drug-nutrient and drug-herb interactions and nutrient depletions — information that is not typically provided by most pharmacies.
CUSTOM COMPOUNDING SOLUTIONS
- Unique combinations of drugs and nutrients personalized to you.
- Accurate and customized dosages for optimal effectiveness.
- Many forms to choose from, including capsules, liquids, creams, and more.
For over 30 years, Village Green Apothecary's compounding pharmacy has excelled in custom formulations of nutrients (vitamins, minerals, amino acids), herbs, and prescription drugs. Our specially trained pharmacists can work with you to meet your unique needs.
IN-DEPTH NUTRITION & WELLNESS CONSULTATIONS
- One-on-one consultations, in person or via phone call.
- Tailored diet, supplement, and lifestyle recommendations to meet your health goals.
- In-depth knowledge of drug, nutrient, herb interactions and depletions
Working with a nutrition expert can help you address your health concerns and support you in achieving your health goals. Utilizing specialty lab testing, such as nutrient analysis, adrenal and hormone tests, and food sensitivity panels, can provide further important insights into your health.
Supporting Thousands On Their Wellness Path Every Day
Let customers speak for us
from 1089 reviews
Great product and price
Great website, excellent products, fast shipping, competitive price points, great customer service and communication and I absolutely love the marine collagen I received. One of the best I’ve ever taken. I will definitely be ordering from you again! Thank you!
Natrum sulphuricum (30c)
Great decaf medium roast coffee. Wonderful
Everyone is knowledgeable and patient. Also, they have a variety of options and products.
Beef Gelatin Unflavored
Very effective when I combine it with slow release melatonin at night for sleep and stress. This was recommended to me by my functional medicine doctor. The allergy free type is good for people with food sensitivities.
Organic Bacopa really does help with my memory. I can tell the difference if I forget to take it!
This product works for me. Was hounded by my dr to start statins because she thought my numbers were dangerously high. I said absolutely not and added Cholesterice. Over this past year my ‘bad’ number is down 50 points and is staying down. Awesome product which really helped me.
Very glad I found Beberine to give me an assist with pre-diabetes and heart disease. Seems to be working really well.
40,000 volts
Red Yeast Rice
I like the taste not too sweet it is just right.
This is the only thing OTC that actually puts me to sleep! Please don't ever stop making it or carrying it!
Have used for several y
FREQUENTLY ASKED QUESTIONS
What makes Village Green different?
As a leading integrative pharmacy, we have over 10,000 nutritional supplements
Why should I choose Pathway supplements?
Where are you located?
What is your return policy?
MORE SUPPLEMENTS FOR A HEALTHIER YOU


WHY WAIT?
GRAB IT NOW!
Bloating after meals. Headaches after wine. Flushing after leftovers. Sound familiar? DAO Enzyme supports healthy histamine breakdown so you can enjoy the foods you love with comfort and confidence. Why I Formulated DAO EnzymeThis one is personal. My entire family carries genetic variations in the DAO gene. This means we all produce less diamine oxidase enzyme than we need. That translates to a reduced ability to process hi...

Village Green Apothecary
5415 W Cedar Ln
Bethesda, Maryland, 20814
(301) 530-0800
Toll Free: (800) 869-9159
The information provided on this site is not intended to be a substitute for advice or treatment from a qualified physician, nor is it intended to diagnose or treat a health problem or disease. Consult your physician prior to starting any new health program or if you any questions regarding a medical condition.
© 2025 Village Green Apothecary - All Rights Reserved.

