good belly
Worth a lookShows low returns (0.0%), but soft demand (-15.8% this quarter) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Great$19.67avg listing price — sweet spot $15–$100
Competition
Great32%top-5 click share — an open shelf
Price range
Good$2.62–$135.31cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good972.84avg incumbent reviews — the moat a new listing must climb
Conversion
Good4.9%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay82%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
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.Peak months: Jan · busiest ÷ quietest = 1.7×
Top good belly search terms
- good belly33K/yr
- detox shots25K/yr
- good belly probiotic drink17K/yr
- goodbelly10K/yr
- probiotic shots7K/yr
- detox shot8K/yr
- gut shot8K/yr
- good belly probiotic9K/yr
- goodbelly probiotic6K/yr
- goodbelly probiotic juice1K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
GoodBelly Probiotic Capsules for Digestive Health | Vegan Probiotic Supplement with 10 Billion Live Cultures | Probiotics for Women & Men | 30 Capsules
GoodBelly$27.784.4★727 rev
Goodbelly 20 Billion Probiotics Juice Drink Raspberry Blackberry 32 Fl Oz (Pack of 6)
GoodBelly$51.504.3★98 rev
Goodbelly Organic Strawberry Banana Shot Single 2 Fl Oz
GoodBelly$3.194.6★28 rev
GoodBelly Probiotic Capsules for Digestive Health & Iron Absorption | Vegan Probiotic Supplement with 10 Billion Live Cultures | Probiotics for Women & Men | 30 Capsules
GoodBelly$28.704.4★320 rev
Goodbelly Organic Mango Shot Single 2 Fl Oz
GoodBelly$3.144.5★43 rev
Newest
by launch dateGoodbelly Organic Strawberry Banana Shot Single 2 Fl Oz
GoodBelly$3.1928 rev
Goodbelly Organic Mango Shot Single 2 Fl Oz
GoodBelly$3.1443 rev
Goodbelly Mango Shot 4 Pack 2 FZ
GoodBelly$11.724 rev
Goodbelly Strawberry Banana Shot 4 Pack 2 Fl Oz
GoodBelly$11.832 rev
DAUSON Celery Shots Boosted with Ginger Turmeric Piperine & Prebiotics Shots | Wellness Herbal Supplement for Detox Immunity Boost & Digestive Support | 100 Servings
DAUSON$14.61108 rev
Trending
90-day click momentum
LUXURY-VITA Short Torso Waist Trainer for Women 9-inch 9 Steel Bones
LUXURY-VITA$28.283.9★
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$21.154.7★
Goodbelly 20 Billion Probiotics Juice Drink Raspberry Blackberry 32 Fl Oz (Pack of 6)
GoodBelly$51.504.3★
DAUSON Celery Shots Boosted with Ginger Turmeric Piperine & Prebiotics Shots | Wellness Herbal Supplement for Detox Immunity Boost & Digestive Support | 100 Servings
DAUSON$14.614.3★
GoodBelly Probiotic Capsules for Digestive Health | Vegan Probiotic Supplement with 10 Billion Live Cultures | Probiotics for Women & Men | 30 Capsules
GoodBelly$27.784.4★
What buyers say about good belly
What buyers praise and complain about, mined from review topics.What buyers love
“Fresh taste”
“The capsules feel like good quality”
“Great for Gut health”
“Works ok”
“Taste nutrition”
“Less expensive”
“helps my stomach”
“is easy to prepare”
“Strong flavor”
“Arrived as described”
What buyers complain about
“A little expensive”
“No results”
“Bad aftertaste”
“Severe stomach pain”
“it causes problems with your digestive system”
“I had some serious side effects”
“Even when I took only 1 a day -- still going way too much”
“its not tight enough for me”
“The strawberry flavor is horrendous, though”
“Not the ingredients I was looking for”
Top return reasons
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.