Cod Liver Oil
Cod Liver Oil shows low returns (0.0%), but soft demand (-15.0% this quarter) keeps it on the watch list.
Flapen Score
Is Cod Liver Oil profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Cod Liver Oil is a £1.6M/yr Amazon United Kingdom market (984K searches/yr). The top 5 brands hold 78% of demand. Verdict: Worth a look — 50/100.
Cod Liver Oil: 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 -15.0% over the last 90 days and 17.6% of searches end in a purchase.
£1.6M
revenue / yr
Who owns the niche?
The top 5 brands hold 78% of demand, so 22% of the market is open.
22%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.7★ — the gap to enter on.
0/100
page quality · 15 products
Top Cod Liver Oil products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Natures Aid Cod Liver Oil 1000mg Softgels High Strength Omega-3 Fish Oil with Vitamins A & D Supports Immune System Heart Health Brain Vision Joints Non-GMO 180 Capsules
- Price
- £7.47
- Rating
- 4.7/5
- Reviews
- 6,484
- Age
- 17y ago

Seven Seas Cod Liver Oil One-A-Day Omega-3 Fish Oil and Vitamin D 120 Capsules 4 Months Supply
- Price
- £7.41
- Rating
- 4.7/5
- Reviews
- 7,936
- Age
- 14y ago

Natures Aid Cod Liver Oil 1000mg Softgels High Strength Omega-3 Fish Oil with Vitamins A & D Supports Immune System Heart Health Brain Vision Joints Non-GMO 90 Capsules
- Price
- £5.46
- Rating
- 4.7/5
- Reviews
- 2,973
- Age
- 17y ago

Cod Liver Oil High Strength 1000mg Heart Brain and Joint Healthcare Supplements Natural Rich Source of Omega 3 Fatty Acids | 120 Capsules
- Price
- £6.10
- Rating
- 4.7/5
- Reviews
- 1,228
- Age
- 5y ago

Cod Liver Oil 1000mg 360 Capsules of High Strength Fish Oil Rich in Omega 3. Supports Heart Health Brain Health Eye Health and Normal Blood Pressure
- Price
- £15.27
- Rating
- 4.7/5
- Reviews
- 8,324
- Age
- 8y ago
Trending
90-day click momentum
Pure Cod Liver Oil 1000mg | 360 Softgel Capsules | UK Made
- Price
- £14.81
- Rating
- 4.7/5
- Reviews
- 4,202
- Age
- 9mo ago

Seven Seas Cod Liver Oil One-A-Day Omega-3 Fish Oil and Vitamin D 60 Capsules 2 Months Supply
- Price
- £5.01
- Rating
- 4.7/5
- Reviews
- 3,105
- Age
- 18y ago

Cod Liver Oil Capsules High Strength 1000mg - 180 Capsules | UK Made Fish Oils - 6 Month Supply | Rich Source of Omega 3 Essential Fatty Acids | High EPA DHA - Made in the UK for Hellenia
- Price
- £7.40
- Rating
- 4.7/5
- Reviews
- 1,030
- Age
- 13y ago

Cod Liver Oil Capsules High Strength 2000mg - Rich in EPA DHA Omega 3 & Vitamins D and A - 60 Softgel Tablets - 1000mg Arctic Cod Liver Oil per Capsule - Odourless & Burp-Free Fish Oil - UK Made
- Price
- £7.93
- Rating
- 4.5/5
- Reviews
- 1,159
- Age
- 6y ago

Natures Aid Cod Liver Oil 1000mg Softgels High Strength Omega-3 Fish Oil with Vitamins A & D Supports Immune System Heart Health Brain Vision Joints Non-GMO 90 Capsules
- Price
- £5.46
- Rating
- 4.7/5
- Reviews
- 2,973
- Age
- 17y ago
Newest
by launch date
Pure Cod Liver Oil 1000mg | 360 Softgel Capsules | UK Made
- Price
- £14.81
- Rating
- 4.7/5
- Reviews
- 4,202
- Age
- 9mo ago

Pure Cod Liver Oil 1000mg | 180 Softgel Capsules | UK Made
- Price
- £8.23
- Rating
- 4.7/5
- Reviews
- 905
- Age
- 9mo ago

Cod Liver Oil High Strength 1000mg Heart Brain and Joint Healthcare Supplements Natural Rich Source of Omega 3 Fatty Acids | 120 Capsules
- Price
- £6.10
- Rating
- 4.7/5
- Reviews
- 1,228
- Age
- 5y ago

Cod Liver Oil Softgels 1000mg - 180 Cod Liver Soft gels High Strength Softgels- Cod Liver Oil Rich in Omega 3 EPA DHA Fatty Acids + Vitamins A & D High Strength Fish Oil - UK Made by New Leaf
- Price
- £8.35
- Rating
- 4.7/5
- Reviews
- 793
- Age
- 5y ago

Cod Liver Oil Capsules High Strength | 2000mg | 360 Softgel Pills | Rich in Omega 3 Vitamins A & D | Supplement with 171mg of DHA and 151mg of EPA | by Horbaach
- Price
- £18.81
- Rating
- 4.7/5
- Reviews
- 1,730
- Age
- 6y ago
Competition: brands, sellers & click share
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.
Brands
12 falling
Sellers
68
Top-5 brand share
78%
Top 20: 100%
Top-5 click share
70%
Top 20: 100%
Open market
17%
- Natures Aid42%
- Sevenseas12%
- Zipvit10%
- NutriVolv9%
- SEVEN SEAS5%
- NEW LEAF PRODUCTS5%
- Open — no brand owns it (6 brands, 17%)
Cod Liver Oil demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.4×
Top Cod Liver Oil search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- cod liver oil capsules high strength365K/yr
- cod liver oil309K/yr
- cod liver oil capsules162K/yr
- seven seas cod liver oil42K/yr
- cod liver oil tablets21K/yr
- codliver oil capsules 1000mg12K/yr
- cod liver oil gelatine free8K/yr
- cod liver oil capsules 1000mg14K/yr
- seven seas cod liver oil capsules9K/yr
- gelatine free cod liver oil5K/yr
What reviews say buyers love and hate about Cod Liver Oil
What buyers mention most, as a share of all reviews.
What buyers love
81% of reviews“Good Value”
“Definitely a solid quality product”
“Arrived exactly as described”
“Helping with joint pain”
“The capsules are easy enough to take and, importantly, I havent experienced the unpleasant fishy aftertaste or repeat burps that can sometimes come with fish oil supplements”
What buyers complain about
59% of reviews“The aftertaste is awful”
“The capsules are a bit large”
“The container smells, as usual,”
“this is NOT per capsule”
“Cod liver oil”
Cod Liver Oil return rate & reasons
Why buyers send it back, as a share of all return requests.
0.0%
Return rate
0%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Cod Liver Oil questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









