---
title: "Stomach Flu — $47K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/stomach-flu"
last_updated: "2026-08-11T04:08:55.336Z"
locale: en
meta:
description: "Niche score 33/100 · $47K/yr market · 28K searches/yr · $12.32 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 33/100 · $47K/yr market · 28K searches/yr · $12.32 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Stomach Flu — $47K/yr Amazon US Niche (2026) - Flapen"
---
# **stomach flu**
**Skip it**
Brand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Market size 12Growth 13Conversion 96Competition 16Returns 99Price range 19Avg price 53Brand share 5Review moat 21Quality gap 24
**Returns**
**Incredible****0.2%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****14.0%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$12.32**
avg listing price — sweet spot $15–$100
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****11,654**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Bad****$6.56–$16.92**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Bad****80%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-23.5%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$47K**
$47K/yr · 28K searches
**Brand share**
**Bad****98%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, stomach flu is a $47K/yr Amazon United States market (28K searches/yr). The top 5 brands hold 98% of demand. Verdict: Skip it — 33/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **stomach flu market data**
- **Units sold / yr**
- **3K–4K**
- avg 250–500/product
- **Revenue / yr**
- **$37K–$49K**
- units × avg price
- **Conversion rate**
- **14.0%**
- **Avg BSR**
- **#60**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **82%**
- **Out of stock**
- **1.0%**
- **Avg brand age**
- **73 months**
- **Avg seller age**
- **151 days**
## **Competition & brand share**
The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▲rising
**Sellers**
**580**
**Top-5 brand share**
**98%**
Top 20: 100%
**Top-5 click share**
**80%**
Top 20: 100%
**Open market**
**0%**
- Boiron80% - Kaopectate5% - MARYRUTH'S5% - tummy drops4% - Genexa4% - Lysol2%
## **Demand**
Weekly Amazon search volume, last 10 weeks — -23.5% search growth over the last 90 days.
600400May '26May '26May '26May '26May '26Jun '26Jun '26Jun '26Jun '26Jul '26
[**Open Trend **](https://flapen.com/research/us/health-household/stomach-flu/trend)
## **Top stomach flu search terms**
- **stomach bug essentials**4K/yr+24.6%6.5% conv. - **boiron diarrhea relief**4K/yr-14.2%19.3% conv. - **stomach bug**4K/yr-28.1%3.5% conv. - **stomach flu**5K/yr-52.2%3.8% conv. - **diaralia**5K/yr-14.1%20.3% conv. - **stomach flu medicine**3K/yr-37.5%5.0% conv. - **diaralia boiron**2K/yr-35.2%27.7% conv. [**All search terms **](https://flapen.com/research/us/health-household/stomach-flu/search-terms)
## **Top stomach flu products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%$7K30%$14K45%$21K60%$28K101001K10K100K1.0M Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Boiron Diaralia Tablets for Diarrhea Relief Gas Bloating Intestinal Pain and Travlers Diarrhea - 60 Count**Boiron**$9.07**4.4★960 rev](https://www.amazon.com/dp/B07WQG7QSX) [2**Boiron Diaralia On The Go Travel Essential for Diarrhea Relief Gas Bloating Intestinal Pain and Travelers Diarrhea - 2 Count (160 Pellets)**Boiron**$9.30**4.4★273 rev](https://www.amazon.com/dp/B0B9DYJFRQ) [3**Boiron NauseaCalm Relief for Upset Stomach Nausea and Vomiting Due to Stomach Flu Overindulgence or Motion Sickness - Non-Drowsy - 60 Count**Boiron**$10.63**4.5★2,529 rev](https://www.amazon.com/dp/B09RC7X1TC) [4**Boiron Arsenicum Album 30C Homeopathic Medicine for Relief from Diarrhea Nausea Vomiting Cramps and Travelers Diarrhea - 3 Count (240 Pellets)**Boiron**$14.94**4.8★838 rev](https://www.amazon.com/dp/B08M2J5DNC) [5**Kaopectate Multi-Symptom Anti-Diarrheal & Upset Stomach Reliever 42 Caplets Anti Diarrhea Caplets**Kaopectate**$6.56**4.7★4,883 rev](https://www.amazon.com/dp/B08YBB29SM)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Boiron DiarrheaCalm Tablets for Diarrhea Relief Gas Bloating Intestinal Pain and Travlers Diarrhea - 60 Count**Boiron**$12.98**15 rev8mo ago](https://www.amazon.com/dp/B0FXMWSZ3V) [**Boiron Diaralia On The Go Travel Essential for Diarrhea Relief Gas Bloating Intestinal Pain and Travelers Diarrhea - 2 Count (160 Pellets)**Boiron**$9.30**273 rev3y ago](https://www.amazon.com/dp/B0B9DYJFRQ) [**Boiron NauseaCalm Relief for Upset Stomach Nausea and Vomiting Due to Stomach Flu Overindulgence or Motion Sickness - Non-Drowsy - 60 Count**Boiron**$10.63**2,529 rev4y ago](https://www.amazon.com/dp/B09RC7X1TC) [**Kaopectate Multi-Symptom Anti-Diarrheal & Upset Stomach Reliever 42 Caplets Anti Diarrhea Caplets**Kaopectate**$6.56**4,883 rev5y ago](https://www.amazon.com/dp/B08YBB29SM) [**Tummypops Ginger Lollipops Variety Pack 21 ct for Queasy Stomachs**tummy drops**$15.07**1,838 rev5y ago](https://www.amazon.com/dp/B08LMY9195)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Boiron DiarrheaCalm Tablets for Diarrhea Relief Gas Bloating Intestinal Pain and Travlers Diarrhea - 60 Count**Boiron**$12.98**4.7★**▲ 298%**](https://www.amazon.com/dp/B0FXMWSZ3V) [**MARYRUTHS Activated Charcoal Capsules 950 mg Activated Charcoal | Substance Adsorption | Derived from Coconut Shells | Vegan Capsules from Pine Trees | Non-GMO | Gluten Free | 40 Count**MARYRUTH'S**$14.64**4.8★**▲ 66%**](https://www.amazon.com/dp/B087SJ5H8Q) [**Genexa Kids Clean Tummy Relief | Heartburn Acid Indigestion & Sour Stomach Relief | Childrens Calcium Carbonate | Dye Free 0% Artificial Additives | Ages 2-11 Berry Flavor Chewable Tablets 30ct**Genexa**$13.64**4.8★**▲ 32%**](https://www.amazon.com/dp/B07XFQSH85) [**Boiron Diaralia Tablets for Diarrhea Relief Gas Bloating Intestinal Pain and Travlers Diarrhea - 60 Count**Boiron**$9.07**4.4★**▲ 26%**](https://www.amazon.com/dp/B07WQG7QSX) [**Kaopectate Multi-Symptom Anti-Diarrheal & Upset Stomach Reliever 42 Caplets Anti Diarrhea Caplets**Kaopectate**$6.56**4.7★**▲ 13%**](https://www.amazon.com/dp/B08YBB29SM)
**~~View all trending →~~**
## **What buyers say about stomach flu**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Smell**18%
*“Clean scent”*
**Quality-Overall**12%
*“No complaints”*
**Efficiency**7%
*“Does the job well”*
**Ease Of Cleaning**6%
*“It cleans thoroughly”*
**Acid Regulator/Stomach Ache Relief**6%
*“Sick tummy relief”*
**Value For Money**4%
*“Worth it”*
**Ease Of Use**3%
*“easy to store”*
**Freshness**3%
*“Good for extra freshness”*
**Washability**3%
*“Love to use this to wash clothes and bedding, especially after everyone has just recovered from being sick”*
**Cleansing**3%
*“It cleans thoroughly”*
### **What buyers complain about **
**Leak-Proof**25%
*“Was leaking”*
**Smell**12%
*“Why is the smell soooo strong”*
**Functionality-Overall**5%
*“Did not work for me”*
**Side Effects**4%
*“had the other uncomfortable symptoms that come with it”*
**Ease Of Use**3%
*“the TOP IS VERY VERY DIFFICULT TO GET OPEN”*
**Color**3%
*“though it does turn something a dark color”*
**Value For Money**3%
*“Its just very expensive”*
**Taste-Overall**2%
*“chalky tasting liquid or chewing up tablets”*
**Allergies**2%
*“It is not recommended for people with asthma or respiratory disorders or skin allergies”*
**Size-Overall**2%
*“They are tiny”*
### **Top return reasons **
**Leak-Proof**73%
**Smell**11%
**Value For Money**6%
**Advertised Vs Actual Product**2%
**Size-Overall**2%
**Moist/Dry**1%
**Functionality-Overall**1%
**Compatibility-Overall**1%
**Product Condition**1%
**Contamination**0%
## **Common questions**
- **Is stomach flu profitable to sell on Amazon United States?**
- The niche generates $47K/yr across 11 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -23.5%. Flapen's verdict: Skip it (33/100).
- **How competitive is the stomach flu niche?**
- 6 brands and 580 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 98% of demand.
- **What do buyers complain about in stomach flu?**
- Top complaints mined from reviews: Leak-Proof, Smell, Functionality-Overall. The return rate is 0.2%.
- **What does it cost to enter the stomach flu niche?**
- Listings span $6.56–$16.92; the average listing price is $12.32 (sweet spot $15–$100). The average incumbent carries 11,654 reviews — the moat a new listing must climb.
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