---
title: "Fiber Capsules — $2.0M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/fiber-capsules"
last_updated: "2026-08-09T15:04:43.363Z"
locale: en
meta:
description: "Niche score 66/100 · $2.0M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 66/100 · $2.0M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Fiber Capsules — $2.0M/yr Amazon US Niche (2026) - Flapen"
---
# **fiber capsules**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 94Growth 24Conversion 91Competition 58Returns 100Price range 77Avg price 87Brand share 73Review moat 23Quality gap 33
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Market size**
**Great****$2.0M**
$2.0M/yr · 899K searches
**Conversion**
**Great****11.0%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$19.74**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.39–$33.81**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****61%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****50%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-1.1%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****7,242.71**
avg incumbent reviews — the moat a new listing must climb
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, fiber capsules is a $2.0M/yr Amazon United States market (899K searches/yr). The top 5 brands hold 61% of demand. Verdict: Worth a look — 66/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **fiber capsules market data**
- **Units sold / yr**
- **100K–125K**
- avg 3,000–4,000/product
- **Revenue / yr**
- **$2.0M–$2.5M**
- units × avg price
- **Conversion rate**
- **11.0%**
- **Avg BSR**
- **#75**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **87%**
- **Out of stock**
- **3.0%**
- **Avg brand age**
- **77 months**
- **Avg seller age**
- **146 days**
## **Competition & brand share**
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**23 **▲rising
**Sellers**
**209**
**Top-5 brand share**
**61%**
Top 20: 98%
**Top-5 click share**
**50%**
Top 20: 90%
**Open market**
**33%**
- NOW Foods19% - Metamucil18% - MEMBER´S MARK10% - Quality Choice7% - GoodMeds7% - Fibercon5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -1.1% search growth over the last 90 days.
23K18KPrime Day '25Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.2×
[**Open Trend **](https://flapen.com/research/us/health-household/fiber-capsules/trend)
## **Top fiber capsules search terms**
- **fiber pills**320K/yr+4.5%9.6% conv. - **fiber capsules**226K/yr-2.1%11.3% conv. - **fiber pills for women**45K/yr+1.8%7.6% conv. - **fiber supplement capsules**52K/yr-27.2%7.5% conv. - **fiber supplement for men**44K/yr-0.4%6.3% conv. - **fiber tablets**28K/yr+15.8%7.2% conv. - **fiber pills men**29K/yr-8.3%11.1% conv. - **fiber pill**25K/yr-2.6%7.2% conv. - **fiber for men**22K/yr+18.8%4.3% conv. - **daily fiber capsules**20K/yr-2.2%6.4% conv. [**All search terms **](https://flapen.com/research/us/health-household/fiber-capsules/search-terms)
## **Top fiber capsules 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%4%$78K8%$157K12%$235K16%$313K1001K10K100K 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**Metamucil Psyllium Husk GLP-1 Friendly Fiber Capsules 300 Capsules 3-in-1 Fiber Supplement Daily Psyllium Husk Fiber Capsules Help Support Digestive Health by Promoting Regularity***Metamucil**$32.99**4.6★26,964 rev](https://www.amazon.com/dp/B001TH7K0G) [2**NOW Foods Supplements Psyllium Husk Caps 500 mg Non-GMO Project Verified Natural Soluble Fiber Intestinal Health* 200 Veg Capsules**NOW Foods**$10.49**4.6★31,631 rev](https://www.amazon.com/dp/B005P0XUAM) [3**Members Mark 100% Natural Psyllium Husk Fiber Capsules Digestive Health 400 Count (Pack of 1)**MEMBER´S MARK**$16.85**4.7★1,428 rev](https://www.amazon.com/dp/B0BNNYTPK7) [4**Quality Choice Daily Fiber Capsules for Regularity 160 Count**Quality Choice**$9.58**4.6★2,004 rev](https://www.amazon.com/dp/B003089F5A) [5**NOW Foods Supplements Psyllium Husk Caps 500 mg Non-GMO Project Verified Natural Soluble Fiber Intestinal Health* 500 Veg Capsules**NOW Foods**$19.99**4.6★31,631 rev](https://www.amazon.com/dp/B0013OW2KS)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Carlyle Triple Action Fiber Complex | 180 Capsules**Carlyle**$9.39**472 rev2y ago](https://www.amazon.com/dp/B0D2LWGWV9) [**Benefiber Prebiotic GLP-1 Friendly Fiber Supplement Caplets 84 Count**Benefiber**$18.76**813 rev2y ago](https://www.amazon.com/dp/B0CTTMSF33) [**GoodMeds Psyllium Husk Fiber 520mg Capsules Supplement Soluble Dietary Colon Support for Women and Men Restore Digestive Regularity and Balance (200 Count)**GoodMeds**$10.01**438 rev2y ago](https://www.amazon.com/dp/B0FZNJBKTL) [**GoodMeds Psyllium Husk Fiber 520mg Capsules Supplement Soluble Dietary Colon Support for Women and Men Restore Digestive Regularity and Balance (800 Count)**GoodMeds**$28.36**438 rev2y ago](https://www.amazon.com/dp/B0FZNQ8MYJ) [**MiraFIBER Gummies from The Makers of MiraLAX 8g Per Serving with B Vitamins Metabolism Support Gut Health for Men & Women Prebiotic Fiber Gummies for Adults Mixed Fruit Flavor 72Ct**MiraLAX**$14.82**9,710 rev3y ago](https://www.amazon.com/dp/B0C2ZN52RY)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**GoodMeds Psyllium Husk Fiber 520mg Capsules Supplement Soluble Dietary Colon Support for Women and Men Restore Digestive Regularity and Balance (200 Count)**GoodMeds**$10.01**4.5★**▲ 88%**](https://www.amazon.com/dp/B0FZNJBKTL) [**NOW Foods Supplements Psyllium Husk Caps 500 mg Non-GMO Project Verified Natural Soluble Fiber Intestinal Health* 500 Veg Capsules**NOW Foods**$19.99**4.6★**▲ 48%**](https://www.amazon.com/dp/B0013OW2KS) [**Premium Psyllium Husk Fiber Supplement 1450mg 240 Capsules**Sunergetic**$21.05**4.5★**▲ 44%**](https://www.amazon.com/dp/B01BMQRQ3E) [**GoodMeds Psyllium Husk Fiber 520mg Capsules Supplement Soluble Dietary Colon Support for Women and Men Restore Digestive Regularity and Balance (800 Count)**GoodMeds**$28.36**4.5★**▲ 32%**](https://www.amazon.com/dp/B0FZNQ8MYJ) [**Members Mark 100% Natural Psyllium Husk Fiber Capsules Digestive Health 400 Count (Pack of 1)**MEMBER´S MARK**$16.85**4.7★**▲ 27%**](https://www.amazon.com/dp/B0BNNYTPK7)
**~~View all trending →~~**
## **What buyers say about fiber capsules**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**18%
*“they taste fresh”*
**Quality-Overall**9%
*“the overall quality feels consistent”*
**Value For Money**8%
*“Fair price”*
**Efficiency**7%
*“Works consistently”*
**Nutritional Content**7%
*“Great nutrition supplement”*
**Advertised Vs Actual Product**6%
*“AS ADVERTISED”*
**Regulates Digestion**6%
*“Digestive support”*
**Ease Of Chewing/Swallowing**5%
*“Chewy”*
**Flavor**4%
*“Nice orange flavor”*
**Ease Of Use**4%
*“Ease of use”*
### **What buyers complain about **
**Functionality-Overall**13%
*“No results”*
**Ease Of Chewing/Swallowing**7%
*“Not Chewable”*
**Taste-Overall**7%
*“Disgusting taste”*
**Dosage**6%
*“The recommended dosage was way too much for me”*
**Value For Money**5%
*“they are expensive”*
**Regulates Digestion**4%
*“I experienced bloating”*
**Acid Regulator/Stomach Ache Relief**4%
*“Major bloating”*
**Nutritional Content**3%
*“If anything I was more hungry to get food”*
**Ingredients-Overall**2%
*“Most likely contains lead”*
**Side Effects**2%
*“Terrible side effects”*
### **Top return reasons **
**Dosage**19%
**Functionality-Overall**17%
**Advertised Vs Actual Product**12%
**Vitamin**7%
**Value For Money**6%
**Ease Of Chewing/Swallowing**5%
**Ingredients-Overall**5%
**Acid Regulator/Stomach Ache Relief**4%
**Regulates Digestion**4%
**Vegan/Organic**2%
## **Common questions**
- **Is fiber capsules profitable to sell on Amazon United States?**
- The niche generates $2.0M/yr across 31 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -1.1%. Flapen's verdict: Worth a look (66/100).
- **How competitive is the fiber capsules niche?**
- 23 brands and 209 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 61% of demand.
- **What do buyers complain about in fiber capsules?**
- Top complaints mined from reviews: Functionality-Overall, Ease Of Chewing/Swallowing, Taste-Overall. The return rate is 0.0%.
- **When does demand for fiber capsules peak?**
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- **What does it cost to enter the fiber capsules niche?**
- Listings span $9.39–$33.81; the average listing price is $19.74 (sweet spot $15–$100). The average incumbent carries 7,243 reviews — the moat a new listing must climb.
## **Related niches in Health & Household**
- 76 [**cedar oil**](https://flapen.com/research/us/health-household/cedar-oil)$1.2M/yr+214.4%**Launch it**- 77 [**nutrapure glp1 cutting mix**](https://flapen.com/research/us/health-household/nutrapure-glp1-cutting-mix)$149K/yr+940.2%**Worth a look**- 77 [**dexcom g7**](https://flapen.com/research/us/health-household/dexcom-g7)$2.0M/yr+39.9%**Launch it**- 77 [**purelia**](https://flapen.com/research/us/health-household/purelia)$635K/yr+359.7%**Worth a look**- 77 [**graduation napkins**](https://flapen.com/research/us/health-household/graduation-napkins)$302K/yr+385.7%**Worth a look**- 77 [**credit card wand**](https://flapen.com/research/us/health-household/credit-card-wand)$418K/yr+101.3%**Worth a look**[**All Health & Household niches **](https://flapen.com/research/us/health-household)