---
title: "Histamine Digest — $81K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/health-household/histamine-digest"
last_updated: "2026-08-12T05:30:23.024Z"
locale: en
meta:
description: "Amazon product research for histamine digest: $81K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for histamine digest: $81K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Histamine Digest — $81K/mo Amazon US Product Research (2026)"
---
# **Histamine Digest**
**Worth a look**
Shows low returns (0.0%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 77Growth 22Conversion 96Competition 7Returns 100Price range 95Avg price 95Brand share 0Review moat 59Quality gap 65
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****13.4%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$45.81**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$21.93–$85.94**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Great****$968K**
$968K/yr · 158K searches
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****1,132.29**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-6.8%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****91%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
## **Is histamine digest profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, histamine digest is a $968K/yr Amazon United States market (158K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jun–Jul. Verdict: Worth a look — 54/100.
Data updated Jul 26, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **histamine digest market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **15K–20K**
- avg 2,000–2,500/product
- **Revenue / yr**
- **$687K–$916K**
- units × avg price
- **Conversion rate**
- **13.4%**
- **Avg BSR**
- **#289**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **84 months**
- **Avg seller age**
- **158 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 91% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▲rising
**Sellers**
**13**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**91%**
Top 20: 100%
**Open market**
**0%**
- Seeking Health86% - VitaMonk5% - Omne Diem5% - SOLARAY4%
## **histamine digest demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -6.8% search growth over the last 90 days.
3K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun, Jul · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/us/health-household/histamine-digest/trend)
## **Top histamine digest search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **histamine digest**42K/yr-21.7%6.2% conv. - **seeking health dao enzyme**12K/yr+4.1%7.4% conv. - **seeking health probiota histaminx**12K/yr+16.8%16.0% conv. - **low histamine probiotics**15K/yr-9.4%6.0% conv. - **probiota histaminx**11K/yr+1.6%17.5% conv. - **histaminx**11K/yr+8.5%14.1% conv. - **probiota histamin x**10K/yr+26.0%20.4% conv. - **histamine probiotic**8K/yr+18.9%7.6% conv. - **seeking health dao**7K/yr-10.2%6.1% conv. - **histamine x**8K/yr+18.3%11.9% conv. [**All search terms **](https://flapen.com/research/us/health-household/histamine-digest/search-terms)
## **Top histamine digest products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%$145K30%$290K45%$435K60%$581K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 7 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Seeking Health ProBiota HistaminX - Digestion Supplement for Gut Health Support - Support Histamine with Lactobacillus Plantarum & Lactobacillus Salivarius - Support Immune & Skin Health - 60 Capsules**Seeking Health**$40.39**4.4★1,342 rev](https://www.amazon.com/dp/B0773SY1X2) [2**Seeking Health DAO Enzyme - Formerly Histamine Digest DAO Enzyme Supplement for Histamine Food Intolerance Supports Digestive Health Upset Stomach (90 Capsules)***Seeking Health**$85.94**4.3★2,225 rev](https://www.amazon.com/dp/B07JGW1DCR) [3**Seeking Health DAO Enzyme - Formerly Histamine Digest DAO Enzyme Supplement for Histamine Food Intolerance Supports Digestive Health Upset Stomach (30 Capsules)***Seeking Health**$38.47**4.3★2,225 rev](https://www.amazon.com/dp/B00EOBH8KG) [4**Seeking Health HistaminX - Supplement with Bromelain & Flavonoids - Formula Aids Healthy Swelling Responses & Seasonal Comfort - Support Immune System with Antioxidants - 60 Capsules**Seeking Health**$44.67**4.6★246 rev](https://www.amazon.com/dp/B00XAZAE5I) [5**VitaMonk Low Histamine Probiotics Fight Histamine Intolerance and Support Balanced Gut Health - Histamine Free Probiotic for Those Seeking Health Improvements with Histamine Control -60 Capsules**VitaMonk**$34.62**4.3★631 rev](https://www.amazon.com/dp/B07QXY4QRP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**SOLARAY DAO Enzyme - Digestive Enzyme that Breaks Down Histamine - 60 000 HDU - Digestive Enzymes - Vegan Gluten Free Lab Verified - 30 Servings 30 VegCaps**SOLARAY**$21.93**323 rev1y ago](https://www.amazon.com/dp/B0DJ9ZXKG9) [**Omne Diem DAO 30 000 HDU - 60 Caps - Histamine Neutralizing Enzyme - Relieve Histamine Intolerance with Diamine Oxidase - The Original Tested DAO Enzyme Supplement**Omne Diem**$54.65**934 rev5y ago](https://www.amazon.com/dp/B096SVYM3L) [**VitaMonk Low Histamine Probiotics Fight Histamine Intolerance and Support Balanced Gut Health - Histamine Free Probiotic for Those Seeking Health Improvements with Histamine Control -60 Capsules**VitaMonk**$34.62**631 rev6y ago](https://www.amazon.com/dp/B07QXY4QRP) [**Seeking Health DAO Enzyme - Formerly Histamine Digest DAO Enzyme Supplement for Histamine Food Intolerance Supports Digestive Health Upset Stomach (90 Capsules)***Seeking Health**$85.94**2,225 rev7y ago](https://www.amazon.com/dp/B07JGW1DCR) [**Seeking Health ProBiota HistaminX - Digestion Supplement for Gut Health Support - Support Histamine with Lactobacillus Plantarum & Lactobacillus Salivarius - Support Immune & Skin Health - 60 Capsules**Seeking Health**$40.39**1,342 rev8y ago](https://www.amazon.com/dp/B0773SY1X2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**SOLARAY DAO Enzyme - Digestive Enzyme that Breaks Down Histamine - 60 000 HDU - Digestive Enzymes - Vegan Gluten Free Lab Verified - 30 Servings 30 VegCaps**SOLARAY**$21.93**4.3★**▲ 75%**](https://www.amazon.com/dp/B0DJ9ZXKG9) [**Omne Diem DAO 30 000 HDU - 60 Caps - Histamine Neutralizing Enzyme - Relieve Histamine Intolerance with Diamine Oxidase - The Original Tested DAO Enzyme Supplement**Omne Diem**$54.65**4.3★**▲ 54%**](https://www.amazon.com/dp/B096SVYM3L) [**Seeking Health ProBiota HistaminX - Digestion Supplement for Gut Health Support - Support Histamine with Lactobacillus Plantarum & Lactobacillus Salivarius - Support Immune & Skin Health - 60 Capsules**Seeking Health**$40.39**4.4★**▲ 10%**](https://www.amazon.com/dp/B0773SY1X2) [**Seeking Health HistaminX - Supplement with Bromelain & Flavonoids - Formula Aids Healthy Swelling Responses & Seasonal Comfort - Support Immune System with Antioxidants - 60 Capsules**Seeking Health**$44.67**4.6★**— 6%**](https://www.amazon.com/dp/B00XAZAE5I) [**VitaMonk Low Histamine Probiotics Fight Histamine Intolerance and Support Balanced Gut Health - Histamine Free Probiotic for Those Seeking Health Improvements with Histamine Control -60 Capsules**VitaMonk**$34.62**4.3★**— 5%**](https://www.amazon.com/dp/B07QXY4QRP)
**~~View all trending →~~**
## **What reviews say buyers love and hate about histamine digest**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Fever Relief**13%
*“It helps my histamine intolerance”*
**Efficiency**10%
*“Seems to work ok”*
**Quality-Overall**8%
*“Fabulous product”*
**Allergies**6%
*“Allergies are better”*
**Value For Money**6%
*“this product is SO WORTH IT”*
**Regulates Digestion**4%
*“This helped my gut immensely”*
**Nutritional Content**4%
*“lots of salad”*
**Immunity Booster**4%
*“the best Ive ever purchased so far you need these for people with autoimmune disorders”*
**Side Effects**4%
*“There is much less reaction to food”*
**Acid Regulator/Stomach Ache Relief**4%
*“this helps me digest them”*
### **What buyers complain about **
**Value For Money**12%
*“too expensive”*
**Allergies**9%
*“Like literally I would get sick from my own histamine if I had an encounter with an allergen”*
**Functionality-Overall**7%
*“Did nothing to quell the”*
**Heart Health**6%
*“and it gave me heartburn”*
**Side Effects**4%
*“the medication had other side effects”*
**Acid Regulator/Stomach Ache Relief**4%
*“Would not recommend for sensitive stomachs”*
**Dosage**4%
*“the fact that there aren't enough capsules for a month at the recommended daily dose”*
**Vegan/Organic**4%
*“And it will not work in the vegetarian capsule as it needs to be in a delayed release capsule with an enteric coating so it does not breakdown quickly like vegetarian capsules do”*
**Regulates Digestion**3%
*“Dont take if you have IBS”*
**Quality-Overall**2%
*“Poor quality control”*
### **Top return reasons **
**Advertised Vs Actual Product**50%
**Functionality-Overall**13%
**Smell**13%
**Certifications**13%
**Itch Relief**13%
## **Common histamine digest questions**
- **Is histamine digest profitable to sell on Amazon United States?**
- The niche generates $968K/yr across 7 tracked products. 90-day search growth is -6.8%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the histamine digest niche?**
- 4 brands and 13 sellers compete. The top 5 products take 91% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in histamine digest?**
- Top complaints mined from reviews: Value For Money, Allergies, Functionality-Overall. The return rate is 0.0%.
- **When does demand for histamine digest peak?**
- Demand peaks in Jun–Jul; the busiest month runs 2.0× the quietest.
- **What does it cost to enter the histamine digest niche?**
- Listings span $21.93–$85.94; the average listing price is $45.81 (sweet spot $15–$100). The average incumbent carries 1,132 reviews — the moat a new listing must climb.
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