Is krill oil profitable to sell on Amazon United Kingdom?

The niche generates £279K/yr across 13 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -22.5%. Flapen's verdict: Worth a look (50/100).

How competitive is the krill oil niche?

12 brands and 27 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 81% of demand.

What do buyers complain about in krill oil?

Top complaints mined from reviews: Smell, Value For Money, Size-Overall. The return rate is 0.1%.

When does demand for krill oil peak?

Demand is steady year-round — the busiest month runs 1.4× the quietest.

What does it cost to enter the krill oil niche?

Listings span £5.30–£28.30; the average listing price is £16.90 (sweet spot $15–$100). The average incumbent carries 704 reviews — the moat a new listing must climb.

krill oil

Worth a look

Shows low returns (0.1%), but soft demand (-22.5% this quarter) keeps it on the watch list.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Conversion

Great10.9%

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

Avg price

Great£16.90

avg listing price — sweet spot $15–$100

Review moat

Good703.69

avg incumbent reviews — the moat a new listing must climb

Price range

Good£5.30–£28.30

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

Market size

Good£279K

£279K/yr · 151K searches

Brand share

Okay81%

top-5 brand share — brands hold most of the demand

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Competition

Bad78%

top-5 click share — a locked-up shelf

Growth

Bad-22.5%

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

According to Flapen's Amazon United Kingdom niche tracking, krill oil is a £279K/yr Amazon United Kingdom market (151K searches/yr). The top 5 brands hold 81% of demand. Verdict: Worth a look — 50/100.

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

krill oil market data

Units sold / yr: 15K–20K; avg 1,000–1,250/product
Revenue / yr: £254K–£338K; units × avg price
Conversion rate: 10.9%
Avg BSR: #58
Page quality: 0%
Prime: 100%
Sponsored: 62%
Out of stock: 1.0%
Avg brand age: 72 months
Avg seller age: 167 days

Competition & brand share

The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.

Brands

12 flat

Sellers

Top-5 brand share

81%

Top 20: 100%

Top-5 click share

78%

Top 20: 100%

Open market

13%

WeightWorld29%
Nutri Peak19%
Horbäach15%
Vitabiotics Ultra12%
Nu U Nutrition6%
Tamiodfo6%
Open — no brand owns it (6 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -22.5% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top krill oil search terms

krill oil83K/yr -16.5%9.3% conv.
krill oil capsules high strength 2000mg23K/yr -20.0%11.6% conv.
krill oil capsules10K/yr +9.5%7.5% conv.
krill7K/yr -2.5%9.0% conv.
antarctic krill oil15K/yr -63.3%6.3% conv.
red krill oil5K/yr -3.6%10.3% conv.
krill oil omega 3 capsules high strength2K/yr -37.2%8.9% conv.
antartic krill oil4K/yr -50.8%12.8% conv.
antartic krill oil capsules high strength 2000mg3K/yr -82.8%12.1% conv.

All search terms

Top krill oil 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 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Antarctic Krill Oil Capsules - 1200mg - 3 Months Supply - 180 Softgels

WeightWorld£18.854.6★3,994 rev

Nutri Peak£14.554.4★96 rev

Antarctic Krill Oil Capsules 2000mg | 120 Softgels | High Strength Blend with Fish Oil Astaxanthin Phospholipids EPA and DHA | By Horbaach

Horbäach£16.154.6★1,329 rev

Vitabiotics Ultra Red Krill Oil Nutritional Supplement Capsule with Omega 3-9 Fatty Acids DHA EPA Astaxanthin for Heart Brain and Eye Vision Support from Antarctic Marine Phospholipids

Vitabiotics Ultra£8.334.5★997 rev

Antarctic Krill Oil Super Strength 2000mg - 150 Softgels Capsules - with Astaxanthin & Phospholipids - Omega 3 Fish Oil Alternative - Source of EPA & DHA - Made in the UK - Nu U Nutrition

Nu U Nutrition£17.704.6★483 rev

Newest

by launch date

Antarctic Krill Oil 2000mg Softgels with Omega-3s EPA DHA Astaxanthin and Phospholipids Supplement 120 Softgels

Tamiodfo£11.4115 rev

2mo ago

Puretrex Krill Oil 3000mg 150 Softgels Made in UK Omega 3 EPA DHA with Astaxanthin & Phospholipids High Absorption No Fishy Aftertaste Heart Brain Joint Eye Support

Puretrex£27.5836 rev

8mo ago

Nutri Peak£14.5596 rev

1y ago

Antarctic Krill Oil 2000mg | High Strength Blend with Omega 3 Fish Oil Astaxanthin EPA and DHA | 60 Softgels | Natures Truth

Nature's Truth£12.2031 rev

1y ago

Antarctic Krill Oil Super Strength 2000mg - 150 Softgels Capsules - with Astaxanthin & Phospholipids - Omega 3 Fish Oil Alternative - Source of EPA & DHA - Made in the UK - Nu U Nutrition

Nu U Nutrition£17.70483 rev

3y ago

What buyers say about krill oil

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

What buyers love

Quality-Overall21%

“continues the same reliable quality expected from the brand”

Ease Of Chewing/Swallowing11%

“They are easily swallowed with water, tasteless and no fishy burps afterwards”

Advertised Vs Actual Product9%

“The product does what it says”

Value For Money7%

“good value pack”

Ingredients-Overall6%

“The ingredient list is straightforward and clean”

Taste-Overall4%

“so the claim of no fishy taste made this a more appealing option”

Dosage4%

“which makes taking them daily much more pleasant”

Ease Of Use3%

“easy to take”

Vitamin3%

“Essential Supplement”

Nutritional Content2%

“Loads of good nutrients in this, mainly Omega 3”

What buyers complain about

Smell14%

“Really horrible strong fishy smell”

Value For Money9%

“Poor value for money”

Size-Overall5%

“The capsules are large”

Dosage4%

“meaning a 120-count bottle provides a two-month supply rather than four”

Side Effects3%

“unlike some omega-3 supplements don't leave me with an unpleasant aftertaste or cause any fishy burps”

Advertised Vs Actual Product2%

“this claim is absent from the label on the product”

Ease Of Chewing/Swallowing2%

“Large capsules a bit hard to swallow”

Quality-Overall2%

“I am concerned about the quality of this product”

Taste-Overall1%

“I couldnt taste them while taking them”

Absorbency1%

“I cant measure absorption directly”

Common questions

Is krill oil profitable to sell on Amazon United Kingdom?: The niche generates £279K/yr across 13 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -22.5%. Flapen's verdict: Worth a look (50/100).
How competitive is the krill oil niche?: 12 brands and 27 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 81% of demand.
What do buyers complain about in krill oil?: Top complaints mined from reviews: Smell, Value For Money, Size-Overall. The return rate is 0.1%.
When does demand for krill oil peak?: Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the krill oil niche?: Listings span £5.30–£28.30; the average listing price is £16.90 (sweet spot $15–$100). The average incumbent carries 704 reviews — the moat a new listing must climb.