10 Best Fermented Cod Liver Oil in The UK

Last updated on 17/07/2025

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9.9

Exceptional

Green Pasture

Green Pasture Blue Ice Royal Butter/Fermented Cod Liver Oil Blend - 120 Capsules

Green Pasture Fermented Cod Liver Oil | 180ml (Unflavoured)

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Why We Love It

Rich in essential fatty acids.
Promotes brain and heart health.
Contains natural vitamins A, D.

Main Highlights

Cod liver oil is one of nature’s richest sources of essential fats like omega-3 fatty acids, called docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA).
It also contains Omega 6, 7 and 9 Fatty Acids plus many more important fat soluble nutrients.
Omega-3 fatty acids have been proven effective against reducing inflammation, and can help promote brain development (children) and a host of other essential benefits.
Omega 3 (particularly DHA) contributes to the maintenance of normal blood pressure, vision and blood triglyceride levels.
Cod liver oil also contains naturally-occurring vitamins A and D.

ARMORICA Fermented Cod Liver Oil & Concentrated Butter Oil Blend | Optimal 2:1 Ratio | Cold-Processed | Rich in Omega-3s, Vitamins A, D, K2 | Natural Source of Fat-Soluble Nutrients (175ml)

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Why We Love It

Rich in omega-3 fatty acids.
Sourced from grass-fed cows.
Sustainably caught via pole fishing.

Main Highlights

HEALTHY FATS - Our Fermented Cod Liver Oil delivers essential Omega-3 fatty acids, while the Butter Oil is packed with beneficial fats like CLA (Conjugated Linoleic Acid), Butyric Acid, and MCTs (Medium-Chain Triglycerides). Thanks to our low-temperature production methods, these fats remain in their natural, easily absorbable forms.
FAT-SOLUBLE VITAMINS - The blend of Fermented Cod Liver Oil and Butter Oil offers a rich array of natural vitamins, including K2, D3, A, and E. These vitamins are naturally derived, with no synthetic additives, ensuring optimal purity and effectiveness.
GRASS-FED - Our Butter Oil is sourced from the milk of grass-fed cows, renowned for producing milk with a superior nutritional profile compared to conventionally raised cows. Plus, grass-fed cows live healthier, happier lives.
ATLANTIC COD - Our Fermented Cod Liver Oil is made exclusively from Atlantic Cod (Gadus morhua), ensuring a premium and authentic source. Our fish are sustainably caught using pole-and-line methods, supporting responsible fishing practices and ocean health.
OPTIMAL BLEND - Blended in a 2:1 ratio of fermented cod liver oil and concentrated butter oil to maximise the synergistic benfits of the nutrients to promote a variety of health benefits.

Rosita Extra Virgin Cod Liver Oil - EVCLO (x1)

13% Off

Why We Love It

Naturally occurring nutritional elements.
Sustainable and authentic sourcing.
Unprocessed, safe, and pure.

Main Highlights

PURE: Raw Cod Liver Oil contains 100% naturally occurring nutrients, like vitamins A and D, and a full spectrum of omega fatty acids, including omega 3 EPA and DHA; no synthetic vitamins added in.
SUSTAINABLE: Authentic cod (gadus morhua) are sustainably caught; hook and line on Rosita’s own fishing boat off the coast of Norway.
UNPROCESSED: Cod Liver Oil is quickly and naturally released using a rare, generations-old technique ensuring the utmost freshness; no heat, chemicals or mechanics are ever used.
SAFE: Each batch is 3rd-party d in a microbiological laboratory and certified to meet strict European and WHO regulations for potency and purity (including heavy metals testing). Rosita posts results for complete transparency.
SERVINGS & TASTE: Rosita liquid offers more servings compared to softgels; ideal for therapeutic doses and/or the entire family’s needs. Tastes like robust, wild caught fish from the icy clean seas of Norway! Nothing added to mask all-natural taste.

Rosita Real Foods Extra Virgin Cod Liver Oil (EVCLO) Softgels - 90 Softgels, 0.21 kilograms

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Why We Love It

All natural, no synthetic vitamins.
Uses rare, ancient extraction technique.
Sustainable fishing off Norway.

Main Highlights

Contains 100 percent naturally occurring nutrients, like vitamins A and D, and a full spectrum of omega fatty acids, including Omega 3 EPA and DHA. No synthetic vitamins added in!
Rosita uses a rare, generations-old technique that naturally releases the oil quickly
Rosita catches their own fish. The sustainable practice is hook and line on the family’s own fishing boat off the coast of Norway
Every batch is tested and meets strict European regulations
Refrigeration not required
Item Weight: 0.21 kilograms
Unit Count: 90.0

ARMORICA Fermented Cod Liver Oil | Cold-Processed & Naturally Enriched | Omega-3, Antioxidants, and Vitamins A & D | Made in The UK (Organic Sicilian Lemon) (200ml)

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Why We Love It

Preserves nutrients via cold fermentation.
Sustainably sourced in UK.
Refreshing citrus taste.

Main Highlights

Traditional Cold-Process - ARMORICA Fermented Cod Liver Oil's production is based on traditional Celtic methods. Fresh Cod Livers undergo lacto-fermentation in an oxygen-free environment, which releases the nutrient rich oil without the need of heat or chemicals.
Naturally Occurring Omega-3 Fatty Acids - Due to the cold fermentation process, all the omega-3 fatty acids are in their natural triglyceride form. The oil is rich is EPA, DHA and other omega-3 fatty acids, providing a wide spectrum of nutrition.
Naturally Occurring Vitamins A, D3 and More - The gentle fermentation of cod livers protects all the naturally occurring vitamins, co-factors and other nutrients. There are no synthetic vitamins added to the oil.
Sustainably Made in the UK - ARMORICA is proudly produced in the United Kingdom using local and sustainably sourced Atlantic Cod livers.
Organic Lemon Oil - We have added a small amount or organic lemon to give the oil a refreshing and pleasant citrus taste, which also help to protect against repeating flavours.

Nordic Naturals, Arctic-D Cod Liver Oil, 1060mg Omega-3 from Cod Liver Oil, with EPA and DHA, Lemon Flavour, 237ml, Lab-Tested, Soy Free, Gluten Free, Non-GMO

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Why We Love It

High dosage, nutrition-rich oil.
Good bioavailability guaranteed.
Free from unwanted additives.

Main Highlights

HIGH-DOSAGE: One dose, 1 teaspoon, of Arctic-D Cod Liver Oil from Nordic Naturals contains 40mcg (133 IU) of vitamin A, 25mcg (1000 IU) of vitamin D3, 1060mg of total omega-3s, including 340mg of EPA and 510mg of DHA, and 210mg of other omega-3s that you can feed your body every day
GOOD BIOAVAILABILITY: Nordic Naturals Arctic-D Cod Liver Oil is characterised by good bioavailability and is suitable for a nutritionally conscious lifestyle
HIGH QUALITY: Nordic Naturals cod liver oil is tested for quality and purity in independent laboratories
WITHOUT UNWANTED ADDITIVES: The cod liver oil from Nordic Naturals is gluten-free and is produced without genetic engineering

BioCare - Mega EPA - Pure Fish Oil with Omega-3 Fatty Acids, EPA & DHA - Marine Capsules for Heart, Brain & Vision Support - 90 Capsules

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Why We Love It

Promotes heart, brain and vision.
Ensures higher absorption quality.
Supports sustainable fishing practices.

Main Highlights

Mega EPA: A pure fish oil capsule providing omega-3 fatty acids for heart, brain and vision support. One of our edited range of go-to essential products for everyday needs
Effective: Naturally concentrated using NEO-3TM technology, resulting in a natural triglyceride fish oil of outstanding quality and higher absorption than ethyl ester and free fatty acid fish oils
Optimum Support: The wild pacific anchovies and sardines are fished from deep waters off the coast of Peru in sustainable fisheries which comply with the world’s toughest regulations
Flexible: DHA and EPA support normal heart function with a daily intake of 250mg DHA and EPA. DHA contributes to the maintenance of normal brain function and vision with a daily intake of 250mg DHA
BioCare uses the best possible ingredients and processes to ensure the products are of highest quality. These highly effective products are accompanied by the best level of support and service, to effectively meet the requirements of each individual

Icelandic Gold Cod Liver Oil Liquid by Power Health | 500ml of Premium Omega 3 Fish Oil with Vitamin A and D | Codliver Oil with Omega 3 Essential Fatty acids, Including EPA and DHA

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Why We Love It

Premium quality from Icelandic waters.
Supports essential Omega 3 needs.
Promotes overall health and wellness.

Main Highlights

PREMIUM COD LIVER OIL: Sourced from the pristine, deep, and icy waters off Iceland, this exceptional product is crafted in an environment free from pollutants, ensuring unmatched quality and purity.
ESSENTIAL FISH OIL OMEGA 3: Omega 3 is vital at every life stage but can’t be made by the body. Power Health Cod Liver Omega 3 Fish Oil makes it easy and convenient to support overall health and well-being every day.
EASY TO TAKE: Power Health Cod Liver Oil Liquid Form Supplement goes down easy with a mild taste and silky texture. Mix it with juice or milk for a hassle-free way to get your daily Omega 3 Vitamin D support.
ADDITIVE FREE: No artificial colors, flavors, or preservatives—just High Strength Cod Liver Oil with Vitamin D and Omega 3 Liquid form, packed with essential nutrients. Enjoy this pure cod liver oil for optimal health, with nothing added or removed.
VERSUS REGULAR FISH OILS: Power Health Cod Liver Oil combines Omega-3 fish oil, vitamins A and D from cold, pristine waters. Unlike regular fish oil, it offers a more complete nutrient profile, making it a preferred choice as a natural supplement.

Zipvit 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

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Why We Love It

Rich in essential fatty acids.
Boosts immune system functionality.
Supports heart and brain health.

Main Highlights

HIGH STRENGTH COD LIVER OIL: Zipvit’s Cod Liver Oil is a rich source of Essential Fatty Acids, with 80mg of EPA and 100mg of DHA in a single 1000mg Cod Liver Oil capsule
VITAMIN A & D: Our Cod Liver Oil Capsules are a source of vitamin A and D (in the most beneficial, natural D3 form). With 800μg (micrograms) of vitamin A and 5μg of vitamin D3, our Cod Liver Capsules contribute to your daily vitamin requirements
HEALTH BENEFITS: The health benefits of fish oils are well known, with EPA and DHA supporting heart, brain health and normal vision. Vitamin A supports normal vision, and Vitamin D supports the normal function of the immune system
12 MONTHS SUPPLY: Our 360 Cod Liver Oil Capsules are sourced from unpolluted sustainable North Atlantic waters and are GMP manufactured, so they’re fantastic quality. Each pack is enough to last for twelve months, making them incredible value too
WE GIVE BACK: We are committed to good causes and charities too! We have donated more than £550,000 since 1999. In May 2021 we donated £20,751 to our local hospice to help fund their vital work supporting patients and their families

9.0

Superb

We scanned 1990 products

We reviewed these offers relevant to the Fermented Cod Liver Oil within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Green Pasture, Oceans Alive, ARMORICA, Rosita Real Foods, Nordic Naturals, BIOCARE, POWER HEALTH, Zipvit, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Fermented Cod Liver Oil in the market, we considered we took a deep dive into 9951 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Green Pasture Blue Ice Royal Butter/Fermented Cod Liver Oil Blend - 120 Capsules. We love many things about this product by Green Pasture.
The best value product for most shoppers and where user satisfaction is continuously the highest is Green Pasture Fermented Cod Liver Oil | 180ml (Unflavoured) by Oceans Alive based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Fermented Cod Liver Oil and the best cost-to-value ratio is Rosita Extra Virgin Cod Liver Oil - EVCLO (x1)at Rosita Real Foods with a 13% discount.
Our list of the best Fermented Cod Liver Oil is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Fermented Cod Liver Oil in The UK

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Pure Cod Liver Oil 1000mg | Supports Heart, Brain, Vision & Immune Health | Rich in Omega 3 Fatty Acids | 240mg of EPA and 270mg of DHA per Serving | 360 Capsules = 4 Months' Supply | Made in The UK

We scanned 1990 products

We concluded that: