Is fibre supplement profitable to sell on Amazon United Kingdom?

The niche generates £552K/yr across 23 tracked products. 5 of 5 products launched in the last 360 days are still selling. 90-day search growth is -9.2%. Flapen's verdict: Worth a look (57/100).

How competitive is the fibre supplement niche?

21 brands and 52 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 60% of demand.

What do buyers complain about in fibre supplement?

Top complaints mined from reviews: Functionality-Overall, Taste-Overall, Value For Money. The return rate is 0.0%.

When does demand for fibre supplement peak?

Demand is steady year-round — the busiest month runs 1.6× the quietest.

What does it cost to enter the fibre supplement niche?

Listings span £6.69–£18.38; the average listing price is £10.72 (sweet spot $15–$100). The average incumbent carries 1,062 reviews — the moat a new listing must climb.

fibre supplement

Worth a look

Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Great7.9%

search→purchase rate — share of searches ending in a sale

Brand share

Great60%

top-5 brand share — no brand owns this niche

Market size

Good£552K

£552K/yr · 652K searches

Review moat

Good1,061.96

avg incumbent reviews — the moat a new listing must climb

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Good54%

top-5 click share — leaders hold, buyers still browse

Avg price

Okay£10.72

avg listing price — sweet spot $15–$100

Price range

Okay£6.69–£18.38

cheapest to priciest tracked listing — scored on the share inside $15–$100

Growth

Bad-9.2%

90-day search growth — must beat 0% to launch

Signals No Dominant Brand Low Review Barrier

According to Flapen's Amazon United Kingdom niche tracking, fibre supplement is a £552K/yr Amazon United Kingdom market (652K searches/yr). The top 5 brands hold 60% of demand. Verdict: Worth a look — 57/100.

Data updated Jul 25, 2026 · scored weekly · How we score niches

fibre supplement market data

Units sold / yr: 50K–60K; avg 2,000–2,500/product
Revenue / yr: £536K–£643K; units × avg price
Conversion rate: 7.9%
Avg BSR: #26
Page quality: 0%
Prime: 100%
Sponsored: 96%
Out of stock: 0.6%
Avg brand age: 52 months
Avg seller age: 161 days

Competition & brand share

The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.

Brands

21 rising

Sellers

Top-5 brand share

60%

Top 20: 99%

Top-5 click share

54%

Top 20: 97%

Open market

34%

Nutrivo19%
WeightWorld14%
NEW LEAF PRODUCTS13%
NKD Living7%
Inspiriko6%
Well Within6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.2% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.6×

Open Trend

Top fibre supplement search terms

fibre supplement275K/yr -13.1%7.6% conv.
fibre114K/yr -6.6%4.2% conv.
fiber supplement72K/yr -13.1%6.6% conv.
soluble fibre33K/yr -12.3%4.8% conv.
fiber30K/yr -9.8%3.4% conv.
fibre supplements26K/yr -20.8%3.4% conv.
high fibre17K/yr -5.7%2.3% conv.
bioactive fibre9K/yr +382.9%0.8% conv.
fibre tablets17K/yr -4.4%8.8% conv.
bio active fibre8K/yr +46.4%0.3% conv.

All search terms

Top fibre supplement 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 23 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Fibre Supplement - Psyllium Husk 5000mg (500mg of 10:1 Extract) & Probiotic 400 Million CFU Lactobacillus Acidophilus Digestive Gut Health Support & Stool Softener -120 Psyllium Husks Capsules

Nutrivo£6.814.5★203 rev

Organic Psyllium Husk Capsules - 1400mg per Serving - 180 Capsules

WeightWorld£9.214.5★2,363 rev

Fibre Supplement 4000mg Psyllium Husk with Acidophilus - High Strength - Natural Soluble Fiber Supplement from Plantago Ovata Seeds 120 Psyllium Husks Capsules Vegan UK Made by New Leaf

NEW LEAF PRODUCTS£10.474.4★3,562 rev

15g Soluble Fibre Supplement - 50% NHS Daily Intake (2 Servings). 6-in-1 Fiber Supplement Powder with Inulin Prebiotic Fibre Powder FOS Acacia & Probiotics. Tasteless Dissolves Easy 30 Servings

Inspiriko£16.504.4★1,947 rev

12g Soluble Fibre Supplement 3in1 Fibre Powder Well Within

Well Within£13.774.3★646 rev

Newest

by launch date

Physis£8.1446 rev

4mo ago

Psyllium Husk 10000mg with Acidophilus 1 Billion CFU 120 Vegan Capsules | Natural Soluble Fibre Supplement from Plantago Ovata Seeds Made in The UK by Prowise Healthcare

PH PROWISE Healthcare£10.5294 rev

8mo ago

Vinco Fibre Supplement 5000mg Psyllium Husk with Acidophilus - High Strength Natural Soluble Fiber from Plantago Ovata Seeds for Digestive Health and Gut Support - 120 Psyllium Husks Capsules

Vinco Supplements£7.39123 rev

9mo ago

Bio.Me Prebio PHGG (150g Tin - 30 Day Supply) - Prebiotic Fibre Powder Supplement - Water Soluble Fibre to Support Microbial Bacteria Diversity in The Gut - Vegan Friendly & Gluten Free - by Invivo

invivo£18.3883 rev

10mo ago

Fibre Supplement - Psyllium Husk 5000mg (500mg of 10:1 Extract) & Probiotic 400 Million CFU Lactobacillus Acidophilus Digestive Gut Health Support & Stool Softener -120 Psyllium Husks Capsules

Nutrivo£6.81203 rev

10mo ago

What buyers say about fibre supplement

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall12%

“Great product as usual”

Nutritional Content10%

“The probiotic addition is a nice touch”

Advertised Vs Actual Product10%

“As described”

Value For Money9%

“Excellent value for money”

Taste-Overall8%

“These gummies taste absolutely incredible”

Regulates Digestion7%

“Helps with constipation”

Ease Of Use6%

“easy to open”

Ease Of Chewing/Swallowing4%

“Nice and chewable”

Efficiency4%

“Works well”

Solubility3%

“It dissolves in drinks easily”

What buyers complain about

Functionality-Overall11%

“Did not work”

Taste-Overall8%

“It is virtually tasteless”

Value For Money6%

“Waste of money”

Dosage5%

“Not worked for myself as others have said either the dosage is wrong or this is an inferior product”

Regulates Digestion5%

“occasional mild digestive discomfort”

Nutritional Content4%

“you cant seem to get enough fiber in through your diet”

Size-Overall4%

“The size seems a little large”

Ingredients-Overall2%

“Incorrect ingredient information”

Advertised Vs Actual Product2%

“False advertising”

Acid Regulator/Stomach Ache Relief2%

“I am a little prone to bloating”

Common questions

Is fibre supplement profitable to sell on Amazon United Kingdom?: The niche generates £552K/yr across 23 tracked products. 5 of 5 products launched in the last 360 days are still selling. 90-day search growth is -9.2%. Flapen's verdict: Worth a look (57/100).
How competitive is the fibre supplement niche?: 21 brands and 52 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 60% of demand.
What do buyers complain about in fibre supplement?: Top complaints mined from reviews: Functionality-Overall, Taste-Overall, Value For Money. The return rate is 0.0%.
When does demand for fibre supplement peak?: Demand is steady year-round — the busiest month runs 1.6× the quietest.
What does it cost to enter the fibre supplement niche?: Listings span £6.69–£18.38; the average listing price is £10.72 (sweet spot $15–$100). The average incumbent carries 1,062 reviews — the moat a new listing must climb.