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Glucomannan

Glucomannan shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Flapen Score

58
Worth a look
Market size 31Growth 83Conversion 75Competition 21Returns 100Price range 19Avg price 46Brand share 50Review moat 61Quality gap 88
This niche Category average

Is Glucomannan profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Glucomannan is a £139K/yr Amazon United Kingdom market (173K searches/yr). The top 5 brands hold 75% of demand. Demand peaks in May–Jun. Verdict: Worth a look — 58/100.

Glucomannan: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved +79.6% over the last 90 days and 7.0% of searches end in a purchase.

£139K

revenue / yr

Units sold / yr15K
Search volume / yr+79.6%173K
Conversion rate7.0%
Avg price£11.46

Who owns the niche?

The top 5 brands hold 75% of demand, so 25% of the market is open.

25%

open market share

Brands · sellers14 · 19
Top-5 product click share75%
Open market25%
Avg brand age51 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.1★ — the gap to enter on.

0/100

page quality · 15 products

Sponsored placement73%
New entrants (1y)1· 1 succeeded
Avg rating4.1★
Avg reviews1,058

Top Glucomannan products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.

£0£14K£28K£42K£55K1101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

14 rising

Sellers

19

Top-5 brand share

75%

Top 20: 100%

Top-5 click share

75%

Top 20: 100%

Open market

19%

  • Lindens25%
  • BANDINI16%
  • WeightWorld13%
  • NUMAN11%
  • Horbäach11%
  • Bulk6%

Glucomannan demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume173KCVR7.0%Products15Brands14Top 5 Brands75%OOS Rate11.8%Rating4.1★Reviews1,058Avg BSR#235
18K13KSpike '24Spike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: May, Jun · busiest ÷ quietest = 3.4×

Top Glucomannan search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • glucomannan124K/yr
  • glucomannan weight loss29K/yr
  • glucomannan capsules11K/yr
  • glucomannan complex5K/yr
  • glucomannan fibre4K/yr

What reviews say buyers love and hate about Glucomannan

What buyers mention most, as a share of all reviews.

What buyers love

79% of reviews
Quality-Overall19%

A good product with a good track record

Value For Money15%

Good value

Joint Pain14%

Good for joints

Ease Of Chewing/Swallowing6%

Easy to swallow

Weight Loss5%

I have found this to be such a useful supplement to aid my weight loss journey

What buyers complain about

60% of reviews
Functionality-Overall22%

Ineffective

Size-Overall8%

Large capsules,

Ease Of Chewing/Swallowing6%

can snap in half to swallow

Taste-Overall4%

Ease of swallow no taste just being using for a few weeks will need to take a little longer to see some affects for now not a great difference can be seen

Instructions/User Manual/Troubleshooting4%

Unfortunately did nothing for me even though I followed the instructions

Common Glucomannan questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Glucomannan 58/100 on Amazon United Kingdom — Worth a look. The niche generates £139K/yr across 15 tracked products. 1 of 1 products launched in the last 360 days are still selling. Search demand moved +79.6% over the last 90 days.
Search demand for Glucomannan on Amazon United Kingdom peaks in May–Jun, where the busiest month runs 3.4× the quietest.