---
title: "Kirkland Fiber — $3K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/health-household/kirkland-fiber"
last_updated: "2026-08-12T14:13:13.549Z"
locale: en
meta:
description: "Amazon product research for kirkland fiber: $3K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for kirkland fiber: $3K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Kirkland Fiber — $3K/mo Amazon US Product Research (2026)"
---
# **Kirkland Fiber**
**Skip it**
A small market ($34K/yr) — this niche doesn't clear our bar today.
Market size 8Growth 30Conversion 74Competition 64Returns 100Price range 80Avg price 89Brand share 30Review moat 23Quality gap 35
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$20.77**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.30–$44.12**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****6.9%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Good****46%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Okay****+3.9%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****87%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Bad****7,056.88**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$34K**
$34K/yr · 24K searches
## **Is kirkland fiber profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, kirkland fiber is a $34K/yr Amazon United States market (24K searches/yr). The top 5 brands hold 87% of demand. Verdict: Skip it — 49/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **kirkland fiber market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$42K–$52K**
- units × avg price
- **Conversion rate**
- **6.9%**
- **Avg BSR**
- **#154**
- **Page quality**
- **0%**
- **Prime**
- **81%**
- **Sponsored**
- **65%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **89 months**
- **Avg seller age**
- **160 days**
## **Competition: brands, sellers & click share**
The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▲rising
**Sellers**
**241**
**Top-5 brand share**
**87%**
Top 20: 100%
**Top-5 click share**
**46%**
Top 20: 93%
**Open market**
**10%**
- KIRKLAND45% - Metamucil18% - Quality Choice15% - NOW Foods6% - Krikland3% - Benefiber3% - Open — no brand owns it (5 brands, 10%)
## **kirkland fiber demand & seasonality**
Weekly Amazon search volume, last 77 weeks — +3.9% search growth over the last 90 days.
700500Spike '25Prime Day '25Black Friday '25Spike '26 seasonFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/health-household/kirkland-fiber/trend)
## **Top kirkland fiber search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **generic metamucil powder**8K/yr+18.8%5.7% conv. - **kirkland fiber powder**5K/yr+2.1%11.0% conv. - **kirkland fiber**5K/yr+12.1%13.7% conv. - **metamucil generic**5K/yr-24.0%6.4% conv. [**All search terms **](https://flapen.com/research/us/health-household/kirkland-fiber/search-terms)
## **Top kirkland fiber products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%4%$1K8%$3K12%$4K16%$5K101001K10K100K 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**Kirkland Signature Sugar-Free Psyllium Fiber Supplement Powder 360 DosesQ**KIRKLAND**$44.12**4.7★508 rev](https://www.amazon.com/dp/B0CHTNWWLJ) [2**Quality Choice Psyllium Fiber Powder Original Formula 72 Doses for Daily Digestive System Support. Promotes Regularity with Gentle Soluble Fiber in Convenient Powder Formula**Quality Choice**$19.39**4.4★133 rev](https://www.amazon.com/dp/B0FBP1KC7D) [3**Metamucil 4-in-1 Psyllium Husk GLP-1 Friendly Fiber Supplement Sugar-Free 72 teaspoons Orange Flavored Daily Fiber Powder for Digestive Health made with Plant-Based Psyllium Husk Fiber**Metamucil**$17.31**4.6★8,655 rev](https://www.amazon.com/dp/B000052Y5Q) [4**Fiber Capsules Kirkland Therapy for Regularity/Fiber Supplement 360 capsules - Compare to the Active Ingredient in Metamucil Capsules**KIRKLAND**$17.86**4.6★4,753 rev](https://www.amazon.com/dp/B00BH3HPZW) [5**Kirkland Signature OPTIFIBER 25.6 Ounces 190 Servings (2 Pack)**KIRKLAND**$38.32**4.7★204 rev](https://www.amazon.com/dp/B01KR9IDQ6)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Quality Choice Psyllium Fiber Powder Original Formula 72 Doses for Daily Digestive System Support. Promotes Regularity with Gentle Soluble Fiber in Convenient Powder Formula**Quality Choice**$19.39**133 rev1y ago](https://www.amazon.com/dp/B0FBP1KC7D) [**Quality Choice Psyllium Fiber Powder Sugar Free Orange Flavor Formula 114 Doses for Daily Digestive System Support. Promotes Regularity with Gentle Soluble Fiber in Convenient Powder Formula**Quality Choice**$21.94**65 rev1y ago](https://www.amazon.com/dp/B0FBP6192W) [**Quality Choice Psyllium Fiber Powder Original Formula 48 Doses for Daily Digestive System Support. Promotes Regularity with Gentle Soluble Fiber in Convenient Powder Formula**Quality Choice**$14.96**53 rev1y ago](https://www.amazon.com/dp/B0F5CNTHX1) [**Optifiber Powder by Kik-Iand Fiber Supplement 25.6 oz (190 Servings)**Krikland**$26.54**111 rev1y ago](https://www.amazon.com/dp/B0DHTNFCQF) [**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**2,401 rev2y ago](https://www.amazon.com/dp/B0CZSFWZMH)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Kirkland Signature OPTIFIBER 26.8 oz**KIRKLAND**$18.69**4.6★**▲ 141%**](https://www.amazon.com/dp/B0091FABUE) [**Foster & Thrive Daily Psyllium Husk Powder Supplement 4-in-1 Fiber for Digestive Health Laxative Relieves Occasional Constipation Sweetened w/Real Sugar Original Flavor 48 Doses**Foster & Thrive**$8.30**4.0★**▲ 68%**](https://www.amazon.com/dp/B0CP9RJ6W8) [**Kirkland Signature OPTIFIBER 25.6 Ounces 190 Servings (2 Pack)**KIRKLAND**$38.32**4.7★**▲ 63%**](https://www.amazon.com/dp/B01KR9IDQ6) [**Quality Choice Psyllium Fiber Powder Original Formula 72 Doses for Daily Digestive System Support. Promotes Regularity with Gentle Soluble Fiber in Convenient Powder Formula**Quality Choice**$19.39**4.4★**▲ 62%**](https://www.amazon.com/dp/B0FBP1KC7D) [**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★**▲ 35%**](https://www.amazon.com/dp/B081W777S2)
**~~View all trending →~~**
## **What reviews say buyers love and hate about kirkland fiber**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**11%
*“Excellent product”*
**Efficiency**9%
*“Works Well”*
**Taste-Overall**8%
*“Great taste”*
**Value For Money**8%
*“Best value”*
**Advertised Vs Actual Product**7%
*“As advertised”*
**Regulates Digestion**6%
*“Helps constipation”*
**Solubility**6%
*“Mixes easily”*
**Nutritional Content**6%
*“Perfect addition to protein shake”*
**Ease Of Use**4%
*“Easy to Use”*
**Flavor**3%
*“Good orange flavor”*
### **What buyers complain about **
**Taste-Overall**17%
*“Doesnt taste good”*
**Solubility**7%
*“Does Not Dissolve”*
**Functionality-Overall**5%
*“Not effective”*
**Value For Money**5%
*“A little pricey”*
**Flavor**4%
*“No flavor”*
**Texture/Consistency-Overall**3%
*“Texture isnt great”*
**Artificial Sweeteners**3%
*“I saw it has an artificial sweetener”*
**Dosage**3%
*“got them bi cant take them they are to big of capsules”*
**Nutritional Content**3%
*“provide zero nutritional value”*
**Size-Overall**3%
*“It's huge”*
### **Top return reasons **
**Dosage**13%
**Functionality-Overall**13%
**Artificial Sweeteners**11%
**Advertised Vs Actual Product**11%
**Taste-Overall**8%
**Size-Overall**5%
**Value For Money**5%
**Ingredients-Overall**4%
**Regulates Digestion**3%
**Solubility**3%
## **Common kirkland fiber questions**
- **Is kirkland fiber profitable to sell on Amazon United States?**
- The niche generates $34K/yr across 26 tracked products. 90-day search growth is +3.9%. Flapen's verdict: Skip it (49/100).
- **How competitive is the kirkland fiber niche?**
- 11 brands and 241 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 87% of demand.
- **What do buyers complain about in kirkland fiber?**
- Top complaints mined from reviews: Taste-Overall, Solubility, Functionality-Overall. The return rate is 0.0%.
- **When does demand for kirkland fiber peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the kirkland fiber niche?**
- Listings span $8.30–$44.12; the average listing price is $20.77 (sweet spot $15–$100). The average incumbent carries 7,057 reviews — the moat a new listing must climb.
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