---
title: "Good Belly — $118K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/good-belly"
last_updated: "2026-08-12T01:13:50.202Z"
locale: en
meta:
description: "Niche score 54/100 · $118K/yr market · 123K searches/yr · $19.67 avg price. Soft demand (-15.8% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 54/100 · $118K/yr market · 123K searches/yr · $19.67 avg price. Soft demand (-15.8% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Good Belly — $118K/yr Amazon US Niche (2026) - Flapen"
---
# **good belly**
**Worth a look**
Shows low returns (0.0%), but soft demand (-15.8% this quarter) keeps it on the watch list.
Market size 28Growth 17Conversion 57Competition 83Returns 100Price range 64Avg price 87Brand share 39Review moat 63Quality gap 43
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$19.67**
avg listing price — sweet spot $15–$100
**Competition**
**Great****32%**
top-5 click share — an open shelf
**Price range**
**Good****$2.62–$135.31**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****972.84**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****4.9%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$118K**
$118K/yr · 123K searches
**Growth**
**Bad****-15.8%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, good belly is a $118K/yr Amazon United States market (123K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Jan. Verdict: Worth a look — 54/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **good belly market data**
- **Units sold / yr**
- **13K–15K**
- avg 100–250/product
- **Revenue / yr**
- **$246K–$295K**
- units × avg price
- **Conversion rate**
- **4.9%**
- **Avg BSR**
- **#437**
- **Page quality**
- **0%**
- **Prime**
- **80%**
- **Sponsored**
- **74%**
- **Out of stock**
- **6.0%**
- **Avg brand age**
- **72 months**
- **Avg seller age**
- **150 days**
## **Competition & brand share**
Clicks spread well past the top 5 (32% combined) — an open shelf where new products get seen.
**Brands**
**26 **▲rising
**Sellers**
**650**
**Top-5 brand share**
**82%**
Top 20: 97%
**Top-5 click share**
**32%**
Top 20: 72%
**Open market**
**16%**
- GoodBelly50% - Vive Organic12% - Suja10% - Wonderbelly6% - 365 by Whole Foods Market3% - +GNGR2% - Open — no brand owns it (20 brands, 16%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -15.8% search growth over the last 90 days.
4K3KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/health-household/good-belly/trend)
## **Top good belly search terms**
- **good belly**33K/yr-6.8%5.5% conv. - **detox shots**25K/yr-34.4%2.6% conv. - **good belly probiotic drink**17K/yr+14.5%2.3% conv. - **goodbelly**10K/yr-18.8%4.5% conv. - **probiotic shots**7K/yr+11.3%4.7% conv. - **detox shot**8K/yr-17.4%8.6% conv. - **gut shot**8K/yr-19.1%7.3% conv. - **good belly probiotic**9K/yr-55.2%4.3% conv. - **goodbelly probiotic**6K/yr-31.8%5.6% conv. - **goodbelly probiotic juice**1K/yr+46.8%0.4% conv. [**All search terms **](https://flapen.com/research/us/health-household/good-belly/search-terms)
## **Top good belly 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%3%$4K6%$7K9%$11K12%$14K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**GoodBelly Probiotic Capsules for Digestive Health | Vegan Probiotic Supplement with 10 Billion Live Cultures | Probiotics for Women & Men | 30 Capsules**GoodBelly**$27.78**4.4★727 rev](https://www.amazon.com/dp/B00USCCF5S) [2**Goodbelly 20 Billion Probiotics Juice Drink Raspberry Blackberry 32 Fl Oz (Pack of 6)**GoodBelly**$51.50**4.3★98 rev](https://www.amazon.com/dp/B07S8XZHS2) [3**Goodbelly Organic Strawberry Banana Shot Single 2 Fl Oz**GoodBelly**$3.19**4.6★28 rev](https://www.amazon.com/dp/B0DZDXM7GT) [4**GoodBelly Probiotic Capsules for Digestive Health & Iron Absorption | Vegan Probiotic Supplement with 10 Billion Live Cultures | Probiotics for Women & Men | 30 Capsules**GoodBelly**$28.70**4.4★320 rev](https://www.amazon.com/dp/B07DRNH65W) [5**Goodbelly Organic Mango Shot Single 2 Fl Oz**GoodBelly**$3.14**4.5★43 rev](https://www.amazon.com/dp/B0DZDK9JL3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Goodbelly Organic Strawberry Banana Shot Single 2 Fl Oz**GoodBelly**$3.19**28 rev1y ago](https://www.amazon.com/dp/B0DZDXM7GT) [**Goodbelly Organic Mango Shot Single 2 Fl Oz**GoodBelly**$3.14**43 rev1y ago](https://www.amazon.com/dp/B0DZDK9JL3) [**Goodbelly Mango Shot 4 Pack 2 FZ**GoodBelly**$11.72**4 rev1y ago](https://www.amazon.com/dp/B0DZF1WHWP) [**Goodbelly Strawberry Banana Shot 4 Pack 2 Fl Oz**GoodBelly**$11.83**2 rev1y ago](https://www.amazon.com/dp/B0DZDGZJM9) [**DAUSON Celery Shots Boosted with Ginger Turmeric Piperine & Prebiotics Shots | Wellness Herbal Supplement for Detox Immunity Boost & Digestive Support | 100 Servings**DAUSON**$14.61**108 rev1y ago](https://www.amazon.com/dp/B0DMT9NF9K)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**LUXURY-VITA Short Torso Waist Trainer for Women 9-inch 9 Steel Bones**LUXURY-VITA**$28.28**3.9★**▲ 330%**](https://www.amazon.com/dp/B09ZV8D851) [**Wonderbelly Antacid Effective Heartburn and Instant Acid Indigestion Relief Extra Strength Chewable Tablets 1000 mg Calcium Carbonate No Talc or Dye Strawberry Milkshake 120 Count**Wonderbelly**$21.15**4.7★**▲ 138%**](https://www.amazon.com/dp/B0DC63HQY8) [**Goodbelly 20 Billion Probiotics Juice Drink Raspberry Blackberry 32 Fl Oz (Pack of 6)**GoodBelly**$51.50**4.3★**▲ 49%**](https://www.amazon.com/dp/B07S8XZHS2) [**DAUSON Celery Shots Boosted with Ginger Turmeric Piperine & Prebiotics Shots | Wellness Herbal Supplement for Detox Immunity Boost & Digestive Support | 100 Servings**DAUSON**$14.61**4.3★**▲ 47%**](https://www.amazon.com/dp/B0DMT9NF9K) [**GoodBelly Probiotic Capsules for Digestive Health | Vegan Probiotic Supplement with 10 Billion Live Cultures | Probiotics for Women & Men | 30 Capsules**GoodBelly**$27.78**4.4★**▲ 41%**](https://www.amazon.com/dp/B00USCCF5S)
**~~View all trending →~~**
## **What buyers say about good belly**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**19%
*“Fresh taste”*
**Quality-Overall**13%
*“The capsules feel like good quality”*
**Regulates Digestion**7%
*“Great for Gut health”*
**Efficiency**6%
*“Works ok”*
**Nutritional Content**6%
*“Taste nutrition”*
**Value For Money**5%
*“Less expensive”*
**Acid Regulator/Stomach Ache Relief**4%
*“helps my stomach”*
**Ease Of Use**3%
*“is easy to prepare”*
**Flavor**3%
*“Strong flavor”*
**Advertised Vs Actual Product**3%
*“Arrived as described”*
### **What buyers complain about **
**Value For Money**13%
*“A little expensive”*
**Functionality-Overall**11%
*“No results”*
**Taste-Overall**9%
*“Bad aftertaste”*
**Acid Regulator/Stomach Ache Relief**5%
*“Severe stomach pain”*
**Regulates Digestion**4%
*“it causes problems with your digestive system”*
**Side Effects**3%
*“I had some serious side effects”*
**Dosage**3%
*“Even when I took only 1 a day -- still going way too much”*
**Size-Overall**2%
*“its not tight enough for me”*
**Flavor**2%
*“The strawberry flavor is horrendous, though”*
**Ingredients-Overall**2%
*“Not the ingredients I was looking for”*
### **Top return reasons **
**Size-Overall**30%
**Waist Fit**27%
**Smell**5%
**Material Quality**4%
**Length**4%
**Functionality-Overall**4%
**Advertised Vs Actual Product**4%
**Value For Money**2%
**Width**2%
**Velcro Quality**2%
## **Common questions**
- **Is good belly profitable to sell on Amazon United States?**
- The niche generates $118K/yr across 61 tracked products. 4 of 6 products launched in the last 360 days are still selling. 90-day search growth is -15.8%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the good belly niche?**
- 26 brands and 650 sellers compete. The top 5 products take 32% of clicks and top 5 brands hold 82% of demand.
- **What do buyers complain about in good belly?**
- Top complaints mined from reviews: Value For Money, Functionality-Overall, Taste-Overall. The return rate is 0.0%.
- **When does demand for good belly peak?**
- Demand peaks in Jan; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the good belly niche?**
- Listings span $2.62–$135.31; the average listing price is $19.67 (sweet spot $15–$100). The average incumbent carries 973 reviews — the moat a new listing must climb.
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