---
title: "Fiber Supplement Powder — $1.5M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/fiber-supplement-powder"
last_updated: "2026-08-09T09:58:48.205Z"
locale: en
meta:
description: "Niche score 65/100 · $1.5M/yr market · 959K searches/yr · $21.66 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 65/100 · $1.5M/yr market · 959K searches/yr · $21.66 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "Fiber Supplement Powder — $1.5M/yr Amazon US Niche (2026) - Flapen"
---
# **fiber supplement powder**
**Launch it**
A $1.5M/yr market growing +2.1% this quarter with returns at 0.0% — clears our launch bar.
Market size 86Growth 28Conversion 75Competition 67Returns 100Price range 79Avg price 92Brand share 59Review moat 24Quality gap 50
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$21.66**
avg listing price — sweet spot $15–$100
**Market size**
**Great****$1.5M**
$1.5M/yr · 959K searches
**Price range**
**Great****$7.55–$44.12**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****7.0%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Good****45%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Good****70%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Good****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+2.1%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****5,337.82**
avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, fiber supplement powder is a $1.5M/yr Amazon United States market (959K searches/yr). The top 5 brands hold 70% of demand. Demand peaks in Oct. Verdict: Launch it — 65/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **fiber supplement powder market data**
- **Units sold / yr**
- **60K–80K**
- avg 1,500–2,000/product
- **Revenue / yr**
- **$1.3M–$1.7M**
- units × avg price
- **Conversion rate**
- **7.0%**
- **Avg BSR**
- **#110**
- **Page quality**
- **0%**
- **Prime**
- **98%**
- **Sponsored**
- **73%**
- **Out of stock**
- **0.6%**
- **Avg brand age**
- **66 months**
- **Avg seller age**
- **144 days**
## **Competition & brand share**
The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**25 **▲rising
**Sellers**
**236**
**Top-5 brand share**
**70%**
Top 20: 97%
**Top-5 click share**
**45%**
Top 20: 81%
**Open market**
**26%**
- Benefiber26% - Metamucil24% - Physician's CHOICE8% - NOW Foods7% - Tomorrow's Nutrition4% - KIRKLAND4%
## **Demand & seasonality**
Weekly Amazon search volume, last 102 weeks — +2.1% search growth over the last 90 days.
40K30KSpike '24Prime Day '25Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Oct · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/us/health-household/fiber-supplement-powder/trend)
## **Top fiber supplement powder search terms**
- **fiber powder**697K/yr+1.6%6.6% conv. - **fiber supplement powder**85K/yr-11.4%5.3% conv. - **fiber drink mix**34K/yr+37.3%2.8% conv. - **soluble fiber powder**33K/yr-5.0%3.8% conv. - **fiber drinks**22K/yr+26.6%1.6% conv. - **daily fiber powder**16K/yr+26.4%2.7% conv. - **high fiber powder**14K/yr+17.2%1.8% conv. - **powder fiber**12K/yr+15.1%4.0% conv. - **dietary fiber powder**7K/yr+23.2%1.9% conv. - **fiber powder sugar free**9K/yr-20.5%5.0% conv. [**All search terms **](https://flapen.com/research/us/health-household/fiber-supplement-powder/search-terms)
## **Top fiber supplement powder 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%$44K6%$88K9%$131K12%$175K101001K10K100K 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**Benefiber Daily Prebiotic GLP-1 Friendly Fiber Supplement Powder for Digestive Health Unflavored -124 Teaspoons (8.7 Ounces)**Benefiber**$12.79**4.7★8,962 rev](https://www.amazon.com/dp/B01978FIZC) [2**Metamucil 4-in-1 Psyllium Husk GLP-1 Friendly Fiber Supplement Sugar-Free 180 teaspoons Orange Flavored Daily Fiber Powder for Digestive Health made with Plant-Based Psyllium Husk Fiber**Metamucil**$33.71**4.7★35,140 rev](https://www.amazon.com/dp/B003CT2YQY) [3**Benefiber Daily Prebiotic GLP-1 Friendly Fiber Supplement Powder for Digestive Health Unflavored - 250 Teaspoons (17.6 Ounces)**Benefiber**$21.93**4.7★9,314 rev](https://www.amazon.com/dp/B00CX3ASFE) [4**Physicians CHOICE Easy Mix Fiber for GLP-1 Support - No Grit & Sugar Free - Daily Prebiotic Soluble Fiber Powder Supplement - Digestive Health & Regularity - for Women and Men - Unflavored - 7.1oz**Physician's CHOICE**$21.53**4.4★1,689 rev](https://www.amazon.com/dp/B0FTTGT6M7) [5**Metamucil Fiber Supplement Unflavored Clear Mixing Powder No Grit No Sugar Added Plant Based Prebiotic Fiber Supplement Blend for Daily Digestive Health 75 teaspoons**Metamucil**$23.57**4.5★2,401 rev](https://www.amazon.com/dp/B0CZSFWZMH)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Benefiber GLP-1 Friendly Fiber Supplement Berry Fusion On the Go Stick Packs 24 Count**Benefiber**$13.21**168 rev5mo ago](https://www.amazon.com/dp/B0GLN6DHQC) [**Natures Truth Prebiotic Fiber Powder Supplement | 3.53 Oz**Nature's Truth**$8.39**61 rev7mo ago](https://www.amazon.com/dp/B0G62V3C26) [**Physicians CHOICE Easy Mix Fiber for GLP-1 Support - No Grit & Sugar Free - Daily Prebiotic Soluble Fiber Powder Supplement - Digestive Health & Regularity - for Women and Men - Unflavored - 7.1oz**Physician's CHOICE**$21.53**1,689 rev9mo ago](https://www.amazon.com/dp/B0FTTGT6M7) [**6-in-1 Daily Prebiotic Fiber Powder for Gut & Digestive Health GLP-1 Friendly Sugar Free Fiber Supplement Powder with Probiotics Collagen Peptides & Electrolytes - For Women & Men - 7.8 OZ**Venture Pal**$19.56**301 rev9mo ago](https://www.amazon.com/dp/B0FKMPGLCF) [**Belli Welli Daily Fiber Supplement Packets with Collagen Probiotics & Electrolytes | Single Serve Packets for Gut Health Digestion & Debloating | Variety | 10 Count**Belli Welli**$19.97**353 rev1y ago](https://www.amazon.com/dp/B0F252HGWP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Benefiber GLP-1 Friendly Fiber Supplement Berry Fusion On the Go Stick Packs 24 Count**Benefiber**$13.21**4.4★**▲ 192%**](https://www.amazon.com/dp/B0GLN6DHQC) [**Natures Truth Prebiotic Fiber Powder Supplement | 3.53 Oz**Nature's Truth**$8.39**4.2★**▲ 126%**](https://www.amazon.com/dp/B0G62V3C26) [**Tomorrows Nutrition Sunfiber Prebiotic Fiber Supplement for Digestive Health GLP-1 Friendly Low FODMAP Gluten-Free Unflavored 30 Servings**Tomorrow's Nutrition**$24.67**4.6★**▲ 100%**](https://www.amazon.com/dp/B00GYHWJRA) [**Kirkland Signature OPTIFIBER Powder Sugar Free Favor Free Gluten Free Non Thickening NET WT. 760g/26.8 oz (1.6 lbs) (190 Servings)**KIRKLAND**$18.24**4.7★**▲ 94%**](https://www.amazon.com/dp/B081W777S2) [**Physicians CHOICE Easy Mix Fiber for GLP-1 Support - No Grit & Sugar Free - Daily Prebiotic Soluble Fiber Powder Supplement - Digestive Health & Regularity - for Women and Men - Unflavored - 7.1oz**Physician's CHOICE**$21.53**4.4★**▲ 47%**](https://www.amazon.com/dp/B0FTTGT6M7)
**~~View all trending →~~**
## **What buyers say about fiber supplement powder**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Taste-Overall**12%
*“Delicious taste”*
**Quality-Overall**10%
*“Excellent product, very satisfying”*
**Solubility**8%
*“Easy to mix”*
**Nutritional Content**6%
*“is perfect with your protein shake”*
**Regulates Digestion**6%
*“Easy to digest”*
**Efficiency**6%
*“Effective”*
**Flavor**5%
*“Good orange flavor”*
**Advertised Vs Actual Product**5%
*“As described”*
**Ease Of Use**4%
*“Easy to get down”*
**Value For Money**4%
*“Best value”*
### **What buyers complain about **
**Taste-Overall**17%
*“Has a weird taste”*
**Functionality-Overall**6%
*“Did not work”*
**Solubility**6%
*“Does not disolve”*
**Value For Money**5%
*“Price is a little high”*
**Flavor**4%
*“The orange is a weird flavor”*
**Nutritional Content**3%
*“The ingredients are not healthy”*
**Ingredients-Overall**2%
*“Unhealthy ingredients”*
**Texture/Consistency-Overall**2%
*“The texture is a little gritty”*
**Regulates Digestion**2%
*“Not sure how much they help with digestion”*
**Acid Regulator/Stomach Ache Relief**2%
*“I had awful bloating”*
### **Top return reasons **
**Taste-Overall**14%
**Functionality-Overall**11%
**Artificial Sweeteners**10%
**Ingredients-Overall**7%
**Advertised Vs Actual Product**6%
**Value For Money**5%
**Size-Overall**5%
**Solubility**4%
**Sweetness**3%
**Smell**3%
## **Common questions**
- **Is fiber supplement powder profitable to sell on Amazon United States?**
- The niche generates $1.5M/yr across 44 tracked products. 7 of 8 products launched in the last 360 days are still selling. 90-day search growth is +2.1%. Flapen's verdict: Launch it (65/100).
- **How competitive is the fiber supplement powder niche?**
- 25 brands and 236 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 70% of demand.
- **What do buyers complain about in fiber supplement powder?**
- Top complaints mined from reviews: Taste-Overall, Functionality-Overall, Solubility. The return rate is 0.0%.
- **When does demand for fiber supplement powder peak?**
- Demand peaks in Oct; the busiest month runs 2.0× the quietest.
- **What does it cost to enter the fiber supplement powder niche?**
- Listings span $7.55–$44.12; the average listing price is $21.66 (sweet spot $15–$100). The average incumbent carries 5,338 reviews — the moat a new listing must climb.
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