---
title: "Fiber Gdx — $1.5M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/fiber-gdx"
last_updated: "2026-08-09T14:19:40.941Z"
locale: en
meta:
description: "Niche score 52/100 · $1.5M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $1.5M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Fiber Gdx — $1.5M/yr Amazon US Niche (2026) - Flapen"
---
# **fiber gdx**
**Worth a look**
Shows low returns (0.0%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Market size 87Growth 23Conversion 97Competition 4Returns 100Price range 95Avg price 95Brand share 0Review moat 22Quality gap 48
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****15.4%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$34.89**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$16.92–$53.44**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Great****$1.5M**
$1.5M/yr · 285K searches
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-4.9%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****10,225.43**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****95%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, fiber gdx is a $1.5M/yr Amazon United States market (285K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May. Verdict: Worth a look — 52/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **fiber gdx market data**
- **Units sold / yr**
- **40K–50K**
- avg 4,000–5,000/product
- **Revenue / yr**
- **$1.4M–$1.7M**
- units × avg price
- **Conversion rate**
- **15.4%**
- **Avg BSR**
- **#104**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **64 months**
- **Avg seller age**
- **155 days**
## **Competition & brand share**
The top 5 products capture 95% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **—flat
**Sellers**
**11**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**95%**
Top 20: 100%
**Open market**
**0%**
- Pure for Men52% - THORNE45% - Pure Encapsulations3% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 99 weeks — -4.9% search growth over the last 90 days.
6K4KSpike '24Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Apr, May · busiest ÷ quietest = 2.8×
[**Open Trend **](https://flapen.com/research/us/health-household/fiber-gdx/trend)
## **Top fiber gdx search terms**
- **pure for men**111K/yr-6.4%14.4% conv. - **thorne fibermend**42K/yr-2.2%20.5% conv. - **thorne fiber**32K/yr+0.5%13.1% conv. - **stay ready for men**15K/yr-8.2%12.4% conv. - **pure for men stay ready**17K/yr-31.3%13.5% conv. - **pure men**10K/yr+6.0%9.6% conv. - **fibermend**9K/yr+14.6%15.4% conv. - **pure for men fiber**7K/yr+33.8%7.4% conv. - **pure fiber**6K/yr-17.9%4.5% conv. - **fibermend thorne powder**5K/yr+17.0%21.4% conv. [**All search terms **](https://flapen.com/research/us/health-household/fiber-gdx/search-terms)
## **Top fiber gdx 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%$230K30%$460K45%$690K60%$920K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 7 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**THORNE - FiberMend - Prebiotic Fiber Powder to Help Maintain Regularity and Balanced GI Flora* - 11.6 Oz**THORNE**$43.46**4.4★1,241 rev](https://www.amazon.com/dp/B00BGJ7EBC) [2**Pure for Men Original Vegan Cleanliness Stay Ready Fiber Supplement | Helps Promote Digestive Regularity | Psyllium Husk Aloe Vera Chia Seeds Flaxseeds | Proprietary Formula | 120 Vegan Capsules**Pure for Men**$29.76**4.5★17,327 rev](https://www.amazon.com/dp/B07CYNYLPB) [3**Pure for Men Original Cleanliness Stay Ready Fiber Supplement | Helps Promote Digestive Regularity | Psyllium Husk Aloe Vera Chia Seeds Flaxseeds | Proprietary Formula | 60 Vegan Capsules**Pure for Men**$20.22**4.5★17,327 rev](https://www.amazon.com/dp/B07CYJ8ZXJ) [4**Pure for Men Original Cleanliness Stay Ready Fiber Supplement | Helps Promote Digestive Regularity | Psyllium Husk Aloe Vera Chia Seeds Flaxseeds | Proprietary Formula | 240 Vegan Capsules**Pure for Men**$53.44**4.5★17,327 rev](https://www.amazon.com/dp/B09JL7Z5TD) [5**Pure for Men Stay Ready Fiber Extra Strength Supplement | Digestive Regularity | Bowel Movement & Gut Health Support | Vegan Cleanliness | Proprietary Formula | 120 Vegan XL Capsules**Pure for Men**$45.85**4.5★17,327 rev](https://www.amazon.com/dp/B0CX92DBDW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Pure for Men Stay Ready Fiber Extra Strength Supplement | Digestive Regularity | Bowel Movement & Gut Health Support | Vegan Cleanliness | Proprietary Formula | 120 Vegan XL Capsules**Pure for Men**$45.85**17,327 rev2y ago](https://www.amazon.com/dp/B0CX92DBDW) [**Pure for Men Detox Supplement Reset | Promotes Digestive & Gut Health Helps Remove Toxins & Supports Immune System Colon Cleanse | 30 Capsules**Pure for Men**$16.92**783 rev4y ago](https://www.amazon.com/dp/B09GCKMP3H) [**Pure for Men Original Vegan Cleanliness Stay Ready Fiber Supplement | Helps Promote Digestive Regularity | Psyllium Husk Aloe Vera Chia Seeds Flaxseeds | Proprietary Formula | 120 Vegan Capsules**Pure for Men**$29.76**17,327 rev7y ago](https://www.amazon.com/dp/B07CYNYLPB) [**Pure for Men Original Cleanliness Stay Ready Fiber Supplement | Helps Promote Digestive Regularity | Psyllium Husk Aloe Vera Chia Seeds Flaxseeds | Proprietary Formula | 240 Vegan Capsules**Pure for Men**$53.44**17,327 rev8y ago](https://www.amazon.com/dp/B09JL7Z5TD) [**Pure for Men Original Cleanliness Stay Ready Fiber Supplement | Helps Promote Digestive Regularity | Psyllium Husk Aloe Vera Chia Seeds Flaxseeds | Proprietary Formula | 60 Vegan Capsules**Pure for Men**$20.22**17,327 rev8y ago](https://www.amazon.com/dp/B07CYJ8ZXJ)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Pure Encapsulations G.I. Fortify (Capsules) | Supports G.I. Function Motility and Detoxification* | 120 Capsules**Pure Encapsulations**$34.60**4.4★**▲ 19%**](https://www.amazon.com/dp/B00AWB161Y) [**THORNE - FiberMend - Prebiotic Fiber Powder to Help Maintain Regularity and Balanced GI Flora* - 11.6 Oz**THORNE**$43.46**4.4★**▲ 16%**](https://www.amazon.com/dp/B00BGJ7EBC) [**Pure for Men Original Cleanliness Stay Ready Fiber Supplement | Helps Promote Digestive Regularity | Psyllium Husk Aloe Vera Chia Seeds Flaxseeds | Proprietary Formula | 60 Vegan Capsules**Pure for Men**$20.22**4.5★**— 3%**](https://www.amazon.com/dp/B07CYJ8ZXJ) [**Pure for Men Original Cleanliness Stay Ready Fiber Supplement | Helps Promote Digestive Regularity | Psyllium Husk Aloe Vera Chia Seeds Flaxseeds | Proprietary Formula | 240 Vegan Capsules**Pure for Men**$53.44**4.5★**— 5%**](https://www.amazon.com/dp/B09JL7Z5TD) [**Pure for Men Original Vegan Cleanliness Stay Ready Fiber Supplement | Helps Promote Digestive Regularity | Psyllium Husk Aloe Vera Chia Seeds Flaxseeds | Proprietary Formula | 120 Vegan Capsules**Pure for Men**$29.76**4.5★**— 8%**](https://www.amazon.com/dp/B07CYNYLPB)
**~~View all trending →~~**
## **What buyers say about fiber gdx**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**11%
*“Good Quality Product”*
**Advertised Vs Actual Product**10%
*“Product is as advertised”*
**Efficiency**10%
*“Its been effective”*
**Nutritional Content**9%
*“is perfect with your protein shake”*
**Regulates Digestion**6%
*“Works great with bloating”*
**Ease Of Use**4%
*“Easy”*
**Cleansing**4%
*“It makes me feel so much clean”*
**Taste-Overall**3%
*“Doesnt taste bad”*
**Ease Of Chewing/Swallowing**3%
*“Very easy on the palate”*
**Ease Of Cleaning**3%
*“Clean as a slide-whistle”*
### **What buyers complain about **
**Taste-Overall**15%
*“Disgusting taste”*
**Regulates Digestion**9%
*“Caused Bloating and Constipation”*
**Functionality-Overall**9%
*“Does not work”*
**Value For Money**7%
*“Not worth the price”*
**Nutritional Content**6%
*“Too much with the prebiotics”*
**Side Effects**5%
*“Caused stomach upset and bloating”*
**Pain Relief-Overall**5%
*“3 days using it triggered a pain in the right side”*
**Acid Regulator/Stomach Ache Relief**4%
*“This Thorne gives me the worst stomach ache”*
**Ease Of Chewing/Swallowing**3%
*“Hard to drink”*
**Ease Of Use**2%
*“didnt quite deliver on making things as smooth or effortless as expected”*
### **Top return reasons **
**Taste-Overall**20%
**Advertised Vs Actual Product**20%
**Instructions/User Manual/Troubleshooting**20%
**Ingredients-Overall**20%
**Functionality-Overall**20%
## **Common questions**
- **Is fiber gdx profitable to sell on Amazon United States?**
- The niche generates $1.5M/yr across 7 tracked products. 90-day search growth is -4.9%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the fiber gdx niche?**
- 3 brands and 11 sellers compete. The top 5 products take 95% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in fiber gdx?**
- Top complaints mined from reviews: Taste-Overall, Regulates Digestion, Functionality-Overall. The return rate is 0.0%.
- **When does demand for fiber gdx peak?**
- Demand peaks in Apr–May; the busiest month runs 2.8× the quietest.
- **What does it cost to enter the fiber gdx niche?**
- Listings span $16.92–$53.44; the average listing price is $34.89 (sweet spot $15–$100). The average incumbent carries 10,225 reviews — the moat a new listing must climb.
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