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Vegan DAO Enzyme (Diamine Oxidase) - 60,000 Histamine Degradation Units Per Serving (30 Capsules)

Vegan DAO Enzyme (Diamine Oxidase) - 60,000 Histamine Degradation Units Per Serving (30 Capsules)

$25.99
($0.86/serving)

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Vegan DAO Enzyme (Diamine Oxidase) - 60,000 Histamine Degradation Units Per Serving (30 Capsules)

Rated 4.9 out of 5
21 Reviews|1 Question | 6 Answers|
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      $25.99
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      Solaray
      Vegan DAO Enzyme (Diamine Oxidase) - 60,000 Histamine Degradation Units Per Serving (30 Capsules)
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      Product Info

      About This Product

      • Provides 60,000 histamine degradation units (HUDs) per serving
      • Packaged in Enteric Shield VegCaps to ensure the enzyme reaches the gut
      • Lab verified for purity and potency
      • Vegan, sourced from pea sprouts, and made without gluten or soy

      Stay feeling your best as you navigate the right foods for you with help from Vegan DAO Enzyme from Solaray. DAO (diamine oxidase) is an enzyme that exists naturally in the gastrointestinal tract and helps your body break down histamine from food, supporting digestive comfort.

      Frequently Asked Questions

      What is histamine?

      Histamine is a chemical released by your immune system, and it’s also present in some foods. Individuals with histamine intolerances may experience symptoms like gastrointestinal upset, rashes, and more.

      What are histamine degradation units?

      Histamine degradation units (HUDs) measure the potency of diamine oxidase (DAO).

      Read More

      Directions

      Use only as directed. Take 1 vegcap three times daily. Store in a cool, dry place.

      Warning

      Do not use if safety seal is broken or missing. Keep out of reach of children. Consult a licensed healthcare practitioner before using this product.

      Updated Jan 15, 2026
      Read More

      Supplement Facts

      Serving Size: 1 Capsule
      Number of Servings: 30 Servings
      Amount Per Serving
      % Daily Value
      DIAMINE OXIDASE  - PEA SPROUTS, SUPPLYING 60,000 HDU
      4.2 MG
      **%

      Other Ingredients:

      Cellulose, Vegetable Cellulose Capsule, Silica.

      How Do You Read A Supplement Facts Label?

      Specifications

      Brand:
      Solaray
      Form:
      Capsules
      Strength:
      4.2 MG
      Serving Size:
      1 Capsule
      Number of Servings:
      30 Servings
      Price per Serving:
      ($0.87 / serving)
      Product Weight:
      2  OZ
      Allergens:
      Soy Free
      Specialty Diets:
      Vegan ,  Gluten Free
      Item # :
      SO-16625 / 2705978

      Product Reviews
         (21)

      Disclaimer:

      Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of the Vitamin Shoppe. Vitamin Shoppe does not verify or endorse any claims made in these reviews.Please read the full product reviews disclaimer.

      21 Ratings
      4.9out of 5 stars
      21 Ratings

      Rated 5 stars by 90% of reviewers

      590%

      Rated 4 stars by 10% of reviewers

      410%

      Rated 3 stars by 0% of reviewers

      30%

      Rated 2 stars by 0% of reviewers

      20%

      Rated 1 star by 0% of reviewers

      10%
      1-10 of 21 Reviews
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      Aug 26, 2026
      Rated 5 out of 5
      DAO Enzyme
      This review was collected as part of a promotion
      Works great!
      Kori H.
      Originally posted at Solaray
      Was this helpful?
      Review by Kori H. has been flagged
      Flag
      Aug 26, 2026
      Rated 5 out of 5
      Love! Getting again!
      This review was collected as part of a promotion
      Reordering! I am able to eat foods with mid to high histamine if I take this before or after the meal & be symptom/side effect free. Specifically, I no longer get swollen eye lids or under eye.
      Sarah F.
      Originally posted at Solaray
      Was this helpful?
      Review by Sarah F. has been flagged
      Flag
      Aug 2, 2026
      Rated 5 out of 5
      DOA Enzyme
      This review was collected as part of a promotion
      I would recommend this product.
      Samantha E.
      Originally posted at Solaray
      Was this helpful?
      Review by Samantha E. has been flagged
      Flag
      Jul 6, 2026
      Rated 5 out of 5
      Helps with histamine issues.
      This review was collected as part of a promotion
      Helps with histamine issues.
      Melodie T.
      Originally posted at Solaray
      Was this helpful?
      Review by Melodie T. has been flagged
      Flag
      Jun 30, 2026
      Rated 5 out of 5
      Works for me
      This review was collected as part of a promotion
      I had purchased this type of product a number of years ago but only could get it from a Canadian vendor. Thankful it is NOW available in the USA: it has made a big difference for me.
      Anne B.
      Originally posted at Solaray
      Was this helpful?
      Review by Anne B. has been flagged
      Flag
      Jun 28, 2026
      Rated 5 out of 5
      LOVE
      This review was collected as part of a promotion
      This DAO is helping me so much. My ears are no longer plugged and my neck pain is very minimal. Histamine has caused so much inflamation for so many years and now I finally have relief!
      Tifani H.
      Originally posted at Solaray
      Was this helpful?
      Review by Tifani H. has been flagged
      Flag
      Jun 18, 2026
      Rated 5 out of 5
      Solaray Vegan DAO Enzyme Really Makes a Difference
      This review was collected as part of a promotion
      I have Histamine Intolerance, and have tried several different DAO enzyme products over the last several years, along with modifying my diet to limit both high histamine foods and histamine liberators. All of this moved the needle somewhat , but not as much as I'd hoped for. I decided to try Solary's DAO Enzyme a few months back, and it really has made a significant difference. Much less bloating, and I am even able to bring back some foods that I had eliminated for so long. A game changer!
      Miryam B.
      Originally posted at Solaray
      Was this helpful?
      Review by Miryam B. has been flagged
      Flag
      May 21, 2026
      Rated 5 out of 5
      Every bit helps
      This review was collected as part of a promotion
      I have terrible allergies and have yet to fully suppress them, but this enzyme (paired with antihistamines and other supplements) has made this past allergy season bearable. It has now become a part of my year round routine even when I go off of the antihistamines.
      Michelle W.
      Originally posted at Solaray
      Was this helpful?
      Review by Michelle W. has been flagged
      Flag
      May 5, 2026
      Rated 5 out of 5
      Very effective
      This review was collected as part of a promotion
      Has helped my histamine issues dramatically!
      Melodie T.
      Originally posted at Solaray
      Was this helpful?
      Review by Melodie T. has been flagged
      Flag
      Apr 29, 2026
      Rated 4 out of 5
      Better than other brands I've tried
      Better than similar brands I've tried. Not as effective as beef kidney DAO for me but a great vegetarian option
      undefined uVerified Purchaser
      Purchased on Apr 11, 2026
      Was this helpful?
      Review by undefined u has been flagged
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      1 Question
      Why did you choose this?
      The Vitamin ShoppeStore

      Hives

      Emily ZJun 17, 2026

      To reduce bloating after eating

      LISHA MJun 5, 2026

      Bc without it I’m miserable

      Emily DApr 21, 2026

      Mast Cell Activation

      Julia SMar 27, 2026
      Disclaimer:

      Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of the Vitamin Shoppe. Vitamin Shoppe does not verify or endorse any claims made in these reviews.Please read the full product reviews disclaimer.

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      Orders will be shipped within 24 hours of order placement*, pending verification of billing information and shipping method selected. International orders and orders containing gift cards or items that are not currently in stock will be processed as quickly as possible.

       

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      HomeDigestion & Gut HealthEnzymesDigestive EnzymesVegan DAO Enzyme (Diamine Oxidase) - 60,000 Histamine Degradation Units Per Serving (30 Capsules)

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      • Healthy Awards Terms and Conditions
      • Auto Delivery Terms and Conditions
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      By creating an account, you agree to the Healthy Awards Terms and Conditions , Auto Delivery Terms and Conditions and the Vitamin Shoppe's Terms of Use and Privacy Policy. If you are a California or Colorado resident, you agree that you are enrolling in a financial incentive/loyalty program and acknowledge that you have read and understand the Financial Incentive and Loyalty Program Notice.

      Join Now

      Ready to get your V.I.P. on? Fill out the info below and we’ll kickstart your membership with 25 FREE bonus points towards a Cash Back Award.

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      By creating an account, you agree to the Healthy Awards Terms and Conditions , Auto Delivery Terms and Conditions and the Vitamin Shoppe's Terms of Use and Privacy Policy. If you are a California or Colorado resident, you agree that you are enrolling in a financial incentive/loyalty program and acknowledge that you have read and understand the Financial Incentive and Loyalty Program Notice.

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      Thanks for joining the family. Now you get points on every purchase—towards Cash Back Awards—plus, access to the Rewards Center with free points activities every month, giveaways, and oh yeah… those 25 bonus points will be in your account by tomorrow.

      You're In

      Thanks for joining the family. Now you get points on every purchase—towards Cash Back Awards—plus, access to the Rewards Center with free points activities every month, giveaways, and oh yeah… those 25 bonus points will be in your account by tomorrow.

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      AUTO DELIVERY
      Auto Delivery is the best way to put your wellness goals first—and enjoy huge savings every time! We’ll send your essentials at a pace you choose (switch it up any time).
      • Forever Savings: You’ll get 20% off The Vitamin Shoppe® and Vthrive The Vitamin Shoppe® brands, 15% off everything else. Every subscription order. Every time.
      • Never Run Out: Stay effortlessly stocked up with your essentials.
      • Easily Manage: Use our app to easily manage subscriptions.
      • Free Shipping on Refills: Zero cost to replenish products of $25 or more.
      • View Auto Delivery FAQs for additional information
      Rely on the
      Vitamin Shoppe® 100% Satisfaction Guarantee
      Free shipping applies to Auto Delivery replenishment orders when the total value of all subscribed items exceeds $25 after discount is applied. Shipping surcharge may apply if delivered to Alaska or Hawaii.
      One-time coupon discounts don’t carry over to recurring orders.If a coupon offer is applied to purchase of multiple items (i.e. “Buy One, Get One 50% Off, Buy 2, Get 1 Free, etc...) and you select Auto Delivery, all items will be added as recurring orders.
      You may return any item purchased from the Vitamin Shoppe for any reason within thirty (30) days of purchase. For online and catalog orders, the product ship date is the date of purchase. Refunds for unopened items will be issued via your original form of payment with one exception. Online orders paid for with PayPal and returned to a Vitamin Shoppe retail store will be refunded via merchandise credit.
      ×

      AUTO DELIVERY
      Auto Delivery is the best way to put your wellness goals first—and enjoy huge savings every time! We’ll send your essentials at a pace you choose (switch it up any time).
      • Forever Savings: You’ll get 20% off The Vitamin Shoppe® and Vthrive The Vitamin Shoppe® brands, 15% off everything else. Every subscription order. Every time.
      • Never Run Out: Stay effortlessly stocked up with your essentials.
      • Easily Manage: Use our app to easily manage subscriptions.
      • Free Shipping on Refills: Zero cost to replenish products of $25 or more.
      • View Auto Delivery FAQs for additional information
      Rely on the
      Vitamin Shoppe® 100% Satisfaction Guarantee
      Free shipping applies to Auto Delivery replenishment orders when the total value of all subscribed items exceeds $25 after discount is applied. Shipping surcharge may apply if delivered to Alaska or Hawaii.
      One-time coupon discounts don’t carry over to recurring orders.If a coupon offer is applied to purchase of multiple items (i.e. “Buy One, Get One 50% Off, Buy 2, Get 1 Free, etc...) and you select Auto Delivery, all items will be added as recurring orders.
      You may return any item purchased from the Vitamin Shoppe for any reason within thirty (30) days of purchase. For online and catalog orders, the product ship date is the date of purchase. Refunds for unopened items will be issued via your original form of payment with one exception. Online orders paid for with PayPal and returned to a Vitamin Shoppe retail store will be refunded via merchandise credit.
      ×

      AUTO DELIVERY
      Auto Delivery is the best way to put your wellness goals first—and enjoy huge savings every time! We’ll send your essentials at a pace you choose (switch it up any time).
      • Forever Savings: You’ll get 20% off The Vitamin Shoppe® and Vthrive The Vitamin Shoppe® brands, 15% off everything else. Every subscription order. Every time.
      • Never Run Out: Stay effortlessly stocked up with your essentials.
      • Easily Manage: Use our app to easily manage subscriptions.
      • Free Shipping on Refills: Zero cost to replenish products of $25 or more.
      • View Auto Delivery FAQs for additional information
      Rely on the
      Vitamin Shoppe® 100% Satisfaction Guarantee
      Free shipping applies to Auto Delivery replenishment orders when the total value of all subscribed items exceeds $25 after discount is applied. Shipping surcharge may apply if delivered to Alaska or Hawaii.
      One-time coupon discounts don’t carry over to recurring orders.If a coupon offer is applied to purchase of multiple items (i.e. “Buy One, Get One 50% Off, Buy 2, Get 1 Free, etc...) and you select Auto Delivery, all items will be added as recurring orders.
      You may return any item purchased from the Vitamin Shoppe for any reason within thirty (30) days of purchase. For online and catalog orders, the product ship date is the date of purchase. Refunds for unopened items will be issued via your original form of payment with one exception. Online orders paid for with PayPal and returned to a Vitamin Shoppe retail store will be refunded via merchandise credit.
      ×

      AUTO DELIVERY
      Auto Delivery is the best way to put your wellness goals first—and enjoy huge savings every time! We’ll send your essentials at a pace you choose (switch it up any time).
      • Forever Savings: You’ll get 20% off The Vitamin Shoppe® and Vthrive The Vitamin Shoppe® brands, 15% off everything else. Every subscription order. Every time.
      • Never Run Out: Stay effortlessly stocked up with your essentials.
      • Easily Manage: Use our app to easily manage subscriptions.
      • Free Shipping on Refills: Zero cost to replenish products of $25 or more.
      • View Auto Delivery FAQs for additional information
      Rely on the
      Vitamin Shoppe® 100% Satisfaction Guarantee
      Free shipping applies to Auto Delivery replenishment orders when the total value of all subscribed items exceeds $25 after discount is applied. Shipping surcharge may apply if delivered to Alaska or Hawaii.
      One-time coupon discounts don’t carry over to recurring orders.If a coupon offer is applied to purchase of multiple items (i.e. “Buy One, Get One 50% Off, Buy 2, Get 1 Free, etc...) and you select Auto Delivery, all items will be added as recurring orders.
      You may return any item purchased from the Vitamin Shoppe for any reason within thirty (30) days of purchase. For online and catalog orders, the product ship date is the date of purchase. Refunds for unopened items will be issued via your original form of payment with one exception. Online orders paid for with PayPal and returned to a Vitamin Shoppe retail store will be refunded via merchandise credit.
      ×

      AUTO DELIVERY
      Auto Delivery is the best way to put your wellness goals first—and enjoy huge savings every time! We’ll send your essentials at a pace you choose (switch it up any time).
      • Forever Savings: You’ll get 20% off The Vitamin Shoppe® and Vthrive The Vitamin Shoppe® brands, 15% off everything else. Every subscription order. Every time.
      • Never Run Out: Stay effortlessly stocked up with your essentials.
      • Easily Manage: Use our app to easily manage subscriptions.
      • Free Shipping on Refills: Zero cost to replenish products of $25 or more.
      • View Auto Delivery FAQs for additional information
      Rely on the
      Vitamin Shoppe® 100% Satisfaction Guarantee
      Free shipping applies to Auto Delivery replenishment orders when the total value of all subscribed items exceeds $25 after discount is applied. Shipping surcharge may apply if delivered to Alaska or Hawaii.
      One-time coupon discounts don’t carry over to recurring orders.If a coupon offer is applied to purchase of multiple items (i.e. “Buy One, Get One 50% Off, Buy 2, Get 1 Free, etc...) and you select Auto Delivery, all items will be added as recurring orders.
      You may return any item purchased from the Vitamin Shoppe for any reason within thirty (30) days of purchase. For online and catalog orders, the product ship date is the date of purchase. Refunds for unopened items will be issued via your original form of payment with one exception. Online orders paid for with PayPal and returned to a Vitamin Shoppe retail store will be refunded via merchandise credit.