---
product_id: 723624706
title: "Histamine Block | Provides 20,000 HDU of Diamine Oxidase with Ascorbic Vitamin C | Supports Healthy Degradation of Food-Derived Histamine | 30 Easy-To-Swallow Vegetarian Capsules | Non-GMO | Physician Formulated | Seeking Health"
brand: "seeking health"
price: "$178.75"
currency: USD
in_stock: true
reviews_count: 5
category: "Seeking Health"
url: https://www.desertcart.us/products/723624706-histamine-block-provides-20-000-hdu-of-diamine-oxidase-ascorbic
store_origin: US
region: United States of America
---

# Histamine Block | Provides 20,000 HDU of Diamine Oxidase with Ascorbic Vitamin C | Supports Healthy Degradation of Food-Derived Histamine | 30 Easy-To-Swallow Vegetarian Capsules | Non-GMO | Physician Formulated | Seeking Health

**Brand:** seeking health
**Price:** $178.75
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Histamine Block | Provides 20,000 HDU of Diamine Oxidase with Ascorbic Vitamin C | Supports Healthy Degradation of Food-Derived Histamine | 30 Easy-To-Swallow Vegetarian Capsules | Non-GMO | Physician Formulated | Seeking Health by seeking health
- **How much does it cost?** $178.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/723624706-histamine-block-provides-20-000-hdu-of-diamine-oxidase-ascorbic)

## Best For

- seeking health enthusiasts

## Why This Product

- Trusted seeking health brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Review: Check when you first receive…. - Received in April. I used other product first, decided to give it a try today but the item was already open despite having a seal on the outside. I am not sure if the product has been tampered with and I’m concerned about purchasing anything else from this brand again.
Review: This is the one! - Listen people honestly this company is really great. I’ve been getting this product for over a year now and I had to contact customer service for something and they immediately fixed it but the main thing is that this is the only DAO that I can take with absolutely no side effects. It works! It actually works! There’s quite a few especially the cheaper ones I’ve noticed that just don’t do a thing. I do it for mast cell build up the causes puffiness in the face. It’s a rare autoimmune disease. I’ve had to figure it out for the last 15 years of having it. DAO is something that works for me. I am truly really happy with this product and I’ve tried 10 different DAO’s.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00EOBH8KG |
| Brand | Seeking Health |
| Country of Origin | USA |
| Customer Reviews | 4.1 out of 5 stars 1,468 Reviews |
| Dosage Form | Capsule |
| Global Trade Identification Number | 00810007520445 |
| Item Dimensions | 5.5 x 5.5 x 7.6 Centimeters |
| Item Form | Capsule |
| Item Weight | 0.05 Pounds |
| Item dimensions L x W x H | 5.5 x 5.5 x 7.6 Centimeters |
| Manufacturer | Seeking Health |
| Manufacturer Part Number | HIS-DIG-CAP-A |
| UPC | 810007520445 |

## Product Details

- **Brand:** Seeking Health
- **Dosage Form:** Capsule
- **Item Form:** Capsule
- **Item Weight:** 23 g
- **Item dimensions L x W x H:** 5.5 x 5.5 x 7.6 Centimeters
- **Manufacturer:** Seeking Health
- **UPC:** 810007520445

## Images

![Histamine Block | Provides 20,000 HDU of Diamine Oxidase with Ascorbic Vitamin C | Supports Healthy Degradation of Food-Derived Histamine | 30 Easy-To-Swallow Vegetarian Capsules | Non-GMO | Physician Formulated | Seeking Health - Image 1](https://m.media-amazon.com/images/I/51OMKgZ1ekL.jpg)
![Histamine Block | Provides 20,000 HDU of Diamine Oxidase with Ascorbic Vitamin C | Supports Healthy Degradation of Food-Derived Histamine | 30 Easy-To-Swallow Vegetarian Capsules | Non-GMO | Physician Formulated | Seeking Health - Image 2](https://m.media-amazon.com/images/I/71YjmUc28PL.jpg)
![Histamine Block | Provides 20,000 HDU of Diamine Oxidase with Ascorbic Vitamin C | Supports Healthy Degradation of Food-Derived Histamine | 30 Easy-To-Swallow Vegetarian Capsules | Non-GMO | Physician Formulated | Seeking Health - Image 3](https://m.media-amazon.com/images/I/61-WsSvYm1L.jpg)
![Histamine Block | Provides 20,000 HDU of Diamine Oxidase with Ascorbic Vitamin C | Supports Healthy Degradation of Food-Derived Histamine | 30 Easy-To-Swallow Vegetarian Capsules | Non-GMO | Physician Formulated | Seeking Health - Image 4](https://m.media-amazon.com/images/I/81BShZh2WBL.jpg)
![Histamine Block | Provides 20,000 HDU of Diamine Oxidase with Ascorbic Vitamin C | Supports Healthy Degradation of Food-Derived Histamine | 30 Easy-To-Swallow Vegetarian Capsules | Non-GMO | Physician Formulated | Seeking Health - Image 5](https://m.media-amazon.com/images/I/81gTI0Jn3NL.jpg)

## Questions & Answers

**Q: how can your label say 'free of corn' when corn starch is listed as an ingredient??  wouldn't trust this company with my health!!**
A: As someone who is quite sensitive to corn, soy, dairy, wheat and veggie oils, I've had a bit of success reducing many allergy symptoms and allowing me to stop using allergy pills.  Everyone's body responds differently.  With an inflamitory diet, the benefits might be minimal.  But if your already avoiding the foods that make ur immune system mad, this product does s pretty good job of reducing histamine levels that can drive u mad.

**Q: does this product have pork or porcine as an ingredient?**
A: It contains "Diamine Oxidase (from porcine kidney protein concentrate) 20,000 HDU".  The label also states "60 Vegetarian Capsules".  "Does not contain: Wheat, gluten, corn protein, yeast, soy, dairy products, fish, shellfish, peanuts, tree nuts, egg, artificial colors, artificial sweeteners, or preservatives."

**Q: Hi, how can you say your caspules are vegetarian if the contents are made out of pig's kidney?**
A: Technically it does not contain pork. It contains an enzyme found in pig kidneys. I wouldn't call that pork. There are no allergy causing proteins from pigs in the capsule. It should be a safe product for anyone with pork allergies. On a religious basis I don't have an answer.

**Q: Why does this product contain so many toxic fillers (shellac(!), polyvinylpolpyrrolidone, titanium dioxide)?**
A: The titanium dioxide appears to be a mistake on the safety info above.  The actual product label from the maker's website does not list titanium dioxide. http://www.seekinghealth.com/histamine-block-seeking-health.html

## Customer Reviews

### ⭐ Check when you first receive….
*by B***. on 12 August 2023*

Received in April. I used other product first, decided to give it a try today but the item was already open despite having a seal on the outside. I am not sure if the product has been tampered with and I’m concerned about purchasing anything else from this brand again.

### ⭐⭐⭐⭐⭐ This is the one!
*by J***N on 21 March 2026*

Listen people honestly this company is really great. I’ve been getting this product for over a year now and I had to contact customer service for something and they immediately fixed it but the main thing is that this is the only DAO that I can take with absolutely no side effects. It works! It actually works! There’s quite a few especially the cheaper ones I’ve noticed that just don’t do a thing. I do it for mast cell build up the causes puffiness in the face. It’s a rare autoimmune disease. I’ve had to figure it out for the last 15 years of having it. DAO is something that works for me. I am truly really happy with this product and I’ve tried 10 different DAO’s.

### ⭐⭐⭐⭐⭐ ITCHY SKIN? Bugs crawling feeling??
*by D***A on 5 September 2025*

I finally found my solution for that frikin itchyness from even a cotton fabric. Even a strand of hair feels disrespectful in your face when you have a hypersensitive histamine episode in your skin AND FRIENDS THIS IS IT! First was my vit d but now what? .. A frikin enzyme! WOW!!! im taking it two or trice a day with quercetin from the pure brand. And i stopped all the things i liked to eat: I suggest u watch doctor bergs vids on histamines!

## Frequently Bought Together

- Seeking Health Histamine Digest - Formerly Histamine Block, DAO Enzyme Supplement for Histamine Food Intolerance, Supports Digestive Health, Upset Stomach, Vegetarian (30 Capsules)*
- Seeking Health ProBiota HistaminX, 10 Billion CFU Low-Histamine Probiotic Supplement for Gut Health, Microbiome Balance, Digestive Comfort for Histamine Intolerance, Vegan & Vegetarian (60 Capsules)
- Pure Encapsulations Magnesium (Glycinate) - Supplement to Support Stress Relief, Sleep, Heart Health, Nerves, Muscles, and Metabolism* - with Magnesium Glycinate - 90 Capsules

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-14*