Skip to product information
1 of 1

  • Images are for illustration purposes only

Seven Seas Pure Cod Liver Oil Maximum Strength (885mg) – 60 Capsules

Seven Seas Pure Cod Liver Oil Maximum Strength (885mg) – 60 Capsules

  • 1. Ozempic®️-equivalent therapy now available for weight management
  • 2. Average weight loss of 17%, with 1 in 3 patients achieving over 20%
  • 3. May help reduce osteoarthritis-related pain
  • 4. Wegovy®️ is not expected to impact the effectiveness of oral contraceptives
  • 5. Supports cardiovascular risk reduction
  • 6. Over 22 million patients treated with semaglutide-based therapies since 2018

  • ✔️ Provides 885mg cod liver oil per capsule for concentrated omega-3 support
  • ✔️ Supplies EPA and DHA to help maintain normal heart function
  • ✔️ Naturally contains vitamins A and D for immune and bone health
  • ✔️ Supports brain function and normal vision with daily DHA intake
  • ✔️ Convenient once-daily capsule — no fishy liquid required

Price Checker

Regular price £10.49
Sale price £10.49
Sale Sold out
  • Lowest price guarantee
  • Includes FREE private prescription
View full details

 

What Are Cod Liver Oil Capsules and How Do They Help?

 

Seven Seas Pure Cod Liver Oil Maximum Strength (885mg) – 60 Capsules are one of the UK's most recognised omega-3 supplements, delivering a concentrated dose of fish oil alongside naturally occurring vitamins A and D. Each capsule contains 885mg of pure cod liver oil, providing the essential fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). These are the omega-3 fatty acids that the NHS acknowledges may help maintain normal heart function when consumed as part of a balanced diet. If you're looking to support your overall wellbeing through a simple daily habit, cod liver oil capsules are a well-established option backed by decades of use in the UK.

You can find this product and a wide range of other daily supplements in our vitamins and supplements collection. Whether you're new to omega-3s or switching from a liquid formulation, the capsule format makes dosing straightforward and eliminates the taste issue that puts many people off liquid cod liver oil.

 

How Do Seven Seas Cod Liver Oil Capsules Work?

 

The active components in cod liver oil work through several complementary pathways in the body. Here's a summary of the key mechanisms:

  • EPA (eicosapentaenoic acid) — an omega-3 fatty acid that contributes to normal heart function and helps regulate inflammatory processes.
  • DHA (docosahexaenoic acid) — supports normal brain function and maintenance of normal vision, according to established nutritional science.
  • Vitamin A (retinol) — contributes to the maintenance of normal skin, mucous membranes, and immune system function.
  • Vitamin D — supports normal absorption of calcium and phosphorus, contributing to the maintenance of normal bones, teeth, and muscle function. The NHS recommends that adults consider a daily vitamin D supplement, particularly during autumn and winter.

Together, these nutrients work synergistically. You're not just getting omega-3 — you're getting a combination that addresses several common nutritional gaps in the UK diet simultaneously.

 

Who Should Consider Taking These Capsules?

 

These capsules are suitable for a broad range of adults who want to support their heart, brain, joint, and immune health through daily supplementation. They're particularly relevant if your diet is low in oily fish — the NHS recommends eating at least two portions of fish per week, one of which should be oily, but many people in the UK fall short of this.

This product may be appropriate for:

  • Adults aged 18 and over looking to support cardiovascular and cognitive health
  • People who eat little or no oily fish (such as salmon, mackerel, or sardines)
  • Individuals concerned about vitamin D deficiency, especially during winter months
  • Those seeking joint support as part of a broader health routine

It is not suitable for pregnant women due to the high vitamin A content, and caution is advised in children under 12 without medical guidance. Always speak to your pharmacist if you're unsure whether this supplement is right for you.

 

How Does Seven Seas Maximum Strength Compare to Standard Strength?

 

Feature Seven Seas Maximum Strength (885mg) Seven Seas Original (550mg)
Cod liver oil per capsule 885mg 550mg
Omega-3 content Higher EPA & DHA per dose Lower EPA & DHA per dose
Vitamin A & D Included (naturally occurring) Included (naturally occurring)
Suitable for pregnancy No No

 

How Should You Store These Capsules and Are They Clinically Suitable for You?

 

Store Seven Seas Pure Cod Liver Oil Maximum Strength below 25°C in a cool, dry place away from direct sunlight. Keep the pack tightly closed and out of reach of children. Do not use after the expiry date printed on the packaging. Refrigeration is not required, but avoid storing near heat sources such as radiators or in a bathroom cabinet where humidity can fluctuate.

From a clinical suitability perspective, these cod liver oil capsules are generally well tolerated in healthy adults. However, if you are taking anticoagulant medicines such as warfarin, you should speak to your GP or pharmacist before starting, as high-dose omega-3 supplementation may affect blood clotting. People with fish or shellfish allergies should also avoid this product.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Seven Seas Pure Cod Liver Oil Maximum Strength (885mg) – 60 Capsules specifications
Treatment category Nutritional supplement — omega-3 fatty acids, vitamins A and D
Mechanism of action Provides EPA and DHA omega-3 fatty acids plus fat-soluble vitamins A and D to support cardiovascular, cognitive, bone, and immune health
Effective for Supporting heart function, brain health, joint comfort, immune function, and vitamin D intake
Suitable for Adults aged 18 and over; not suitable during pregnancy
Active ingredient Cod liver oil 885mg per capsule (providing EPA, DHA, vitamin A, vitamin D)
Pack size 60 capsules
Strength 885mg cod liver oil per capsule
UK classification General Sale List (GSL) — available without prescription
Drug class Omega-3 fatty acid supplement / nutritional supplement
Preparation Soft gelatin capsule
Route of administration Oral

Specifications of Seven Seas Pure Cod Liver Oil Maximum Strength (885mg) – 60 Capsules

 

What Is Seven Seas Pure Cod Liver Oil Maximum Strength and What Is It Used For?

 

Seven Seas Pure Cod Liver Oil Maximum Strength (885mg) – 60 Capsules is an over-the-counter nutritional supplement containing a concentrated dose of cod liver oil. Each capsule delivers omega-3 fatty acids (EPA and DHA) alongside naturally occurring vitamin A and vitamin D. It is used to help maintain normal heart function, support brain health, contribute to normal bone and immune function, and supplement the diet of people who do not regularly consume oily fish. The NHS advises that most people in the UK do not eat enough oily fish to meet recommended omega-3 intake, making supplementation a practical option for many adults.

 

What Do You Need to Know Before Using Seven Seas Cod Liver Oil Capsules?

 

Before starting any new supplement, it's important to check whether it's appropriate for your individual circumstances. Do not take this product if any of the following apply to you:

  • You are pregnant or planning to become pregnant — cod liver oil contains high levels of vitamin A (retinol), which can be harmful to a developing baby
  • You have a known allergy to fish or fish products
  • You are already taking high-dose vitamin A or vitamin D supplements that may cause you to exceed safe upper intake levels
  • You have hypervitaminosis A or D (excess vitamin A or D in the body)
  • You are a child under 12 years of age, unless directed by a healthcare professional

The following medicines may interact with cod liver oil at higher doses. Always inform your GP or pharmacist if you are taking:

  • Anticoagulants such as warfarin — omega-3 fatty acids may enhance the blood-thinning effect, increasing bleeding risk
  • Other vitamin A or D supplements — combining sources may lead to excessive intake
  • Orlistat (weight loss medicine) — may reduce absorption of fat-soluble vitamins including A and D

 

How Should You Use Seven Seas Cod Liver Oil Maximum Strength Capsules?

 

Using this supplement correctly ensures you get the most benefit while minimising any risk of side effects. Follow these steps:

  1. Take one capsule per day — do not exceed this dose
  2. Swallow the capsule whole with a full glass of water — do not chew or crush it
  3. Take with food, ideally a meal containing some fat, to improve absorption of vitamins A and D
  4. Take at the same time each day to help build a consistent habit
  5. If you experience a fishy aftertaste, try taking the capsule at the start of a meal rather than after
Indication Age Group Dose Frequency
General omega-3 supplementation Adults 18+ 1 capsule (885mg) Once daily with food
Vitamin D supplementation (autumn/winter) Adults 18+ 1 capsule (885mg) Once daily with food
Children under 12 Under 12 Not recommended without medical advice

 

What Are the Possible Side Effects of Seven Seas Cod Liver Oil Capsules?

 

Most people tolerate cod liver oil capsules well, particularly when taken with food. Side effects are generally mild and tend to resolve on their own. If you're concerned about any reaction, speak to your pharmacist — you can also explore our vitamins and supplements range for alternative formulations.

Common side effects (may affect some users):

  • Fishy aftertaste or fishy-smelling breath
  • Mild nausea, particularly if taken on an empty stomach
  • Loose stools or mild diarrhoea
  • Burping or bloating

Less common side effects (rare but possible):

  • Skin reactions such as rash or itching — may indicate fish allergy
  • Headache or dizziness if vitamin A intake becomes excessive over time
  • Increased bleeding time — relevant if you are on anticoagulant therapy

Stop taking this product and seek medical advice if you develop signs of an allergic reaction, including swelling of the face, lips, or throat, or difficulty breathing.

 

How Should You Store Seven Seas Cod Liver Oil Maximum Strength?

 

Proper storage helps maintain the quality and stability of the capsules throughout their shelf life. If you're building a broader supplement routine, our hair care collection also features products that complement nutritional supplementation for hair and scalp health.

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and heat sources
  • Keep the bottle tightly closed after each use
  • Do not store in a bathroom — humidity can degrade the capsules
  • Keep out of sight and reach of children
  • Do not use after the expiry date printed on the packaging
  • Do not freeze

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Seven Seas Pure Cod Liver Oil Maximum Strength online in the UK?

You can order Seven Seas Pure Cod Liver Oil Maximum Strength 885mg – 60 Capsules directly from Cured Pharmacy, a GPhC-registered UK online pharmacy. It is available without a prescription and can be delivered to your door. Browse our full vitamins and supplements range for more options.

How do cod liver oil capsules work in the body?

Cod liver oil capsules provide omega-3 fatty acids — specifically EPA and DHA — which are incorporated into cell membranes throughout the body and help regulate inflammatory pathways. DHA is particularly important for maintaining normal brain function and vision, while EPA supports cardiovascular health. The capsules also deliver vitamins A and D, which contribute to immune function, bone health, and skin maintenance.

How do I take Seven Seas Cod Liver Oil Maximum Strength step by step?

Take one capsule daily, swallowed whole with a full glass of water — never chew or crush it. It's best taken with a meal containing some fat to help your body absorb the fat-soluble vitamins A and D more effectively. Try to take it at the same time each day to make it part of your routine.

What is the best time of day to take cod liver oil capsules?

There is no single "correct" time, but most people find taking their capsule with breakfast or lunch works well. Taking it with a meal reduces the chance of a fishy aftertaste and supports better absorption of fat-soluble vitamins. Avoid taking it on an empty stomach if you find it causes nausea.

What are the side effects of Seven Seas Cod Liver Oil 885mg capsules?

The most commonly reported side effects are a fishy aftertaste, mild nausea, and loose stools — all of which are usually reduced by taking the capsule with food. Less commonly, some people experience burping or bloating. Serious reactions such as allergic responses are rare but require immediate medical attention.

How do I manage the fishy aftertaste from cod liver oil capsules?

Taking the capsule at the beginning of a meal rather than after it can significantly reduce any fishy aftertaste or burping. Some people also find that storing capsules in the fridge (without freezing) helps, though this is not required. Drinking a full glass of water with the capsule also helps.

Can I take Seven Seas Cod Liver Oil if I am pregnant?

No — this product is not recommended during pregnancy. Cod liver oil contains high levels of vitamin A in the form of retinol, and the NHS advises that pregnant women should avoid supplements containing retinol as excess vitamin A can harm the developing baby. Speak to your GP or midwife about omega-3 supplements that are safe in pregnancy, such as those containing only DHA without added vitamin A.

Who is eligible to take Seven Seas Pure Cod Liver Oil Maximum Strength?

This supplement is suitable for adults aged 18 and over who want to support their heart, brain, joint, and immune health. It is not suitable for pregnant women, people with fish allergies, or children under 12 without medical advice. If you take warfarin or other blood-thinning medicines, speak to your pharmacist before starting.

What happens if I miss a dose of cod liver oil capsules?

If you forget to take your daily capsule, simply take it as soon as you remember — unless it is nearly time for your next dose, in which case skip the missed one entirely. Never take two capsules at once to compensate for a missed dose. Missing an occasional dose will not significantly affect the supplement's long-term benefits.

Can Seven Seas Cod Liver Oil interact with warfarin or other medicines?

Yes — omega-3 fatty acids at higher doses may enhance the anticoagulant effect of warfarin and similar blood-thinning medicines, potentially increasing the risk of bleeding. If you take warfarin, aspirin, or any other anticoagulant, speak to your GP or pharmacist before starting cod liver oil supplementation. Your INR may need to be monitored more closely.

How long can you take Seven Seas Cod Liver Oil Maximum Strength for?

This supplement can be taken long-term as part of a balanced diet and healthy lifestyle, provided you do not exceed the recommended daily dose of one capsule. Long-term use at the recommended dose is generally considered safe for healthy adults. If you have any ongoing health conditions, it is worth reviewing your supplement use with your GP or pharmacist periodically.

What are the alternatives to Seven Seas Cod Liver Oil capsules?

Alternatives include standard-strength cod liver oil capsules (such as Seven Seas Original 550mg), pure omega-3 fish oil supplements (which do not contain vitamin A and are therefore safe in pregnancy), and plant-based algae oil capsules for those who prefer a non-fish source of DHA. You can explore a range of options in our vitamins and supplements collection.

Does Seven Seas Cod Liver Oil Maximum Strength contain vitamin D?

Yes — cod liver oil naturally contains vitamin D, and Seven Seas Maximum Strength capsules provide a meaningful contribution towards your daily vitamin D intake. The NHS recommends that adults consider a daily vitamin D supplement of 10 micrograms (400 IU) during autumn and winter, and this product can help contribute to that target. Always check the product label for the exact vitamin D content per capsule.

What does the latest research say about cod liver oil and heart health?

Research consistently supports the role of omega-3 fatty acids — particularly EPA and DHA — in maintaining normal heart function, including supporting healthy triglyceride levels and blood pressure within normal ranges. The European Food Safety Authority (EFSA) has confirmed that DHA and EPA contribute to the normal function of the heart. While cod liver oil is not a treatment for heart disease, it forms a useful part of a heart-healthy lifestyle alongside a balanced diet and regular exercise.

Is Seven Seas Cod Liver Oil Maximum Strength suitable for vegetarians or vegans?

No — this product is derived from fish (cod) and the capsule shell is made from gelatin, which is animal-derived. It is therefore not suitable for vegetarians or vegans. If you follow a plant-based diet and want an omega-3 supplement, look for algae-based DHA capsules, which provide a vegan-friendly source of omega-3 without any fish or animal products. You can explore plant-based options in our vitamins and supplements collection.

How Should You Use Seven Seas Pure Cod Liver Oil Maximum Strength?

Using this supplement correctly is straightforward, but a few simple steps make a real difference to both tolerability and effectiveness. Always read the product label before starting, and if you have any questions, your pharmacist is the best first point of contact.

What Is the Correct Dose of Seven Seas Pure Cod Liver Oil Maximum Strength?

The recommended dose for adults aged 18 and over is one 885mg capsule per day. This provides a concentrated source of omega-3 fatty acids alongside naturally occurring vitamins A and D. Do not take more than the stated dose — exceeding it does not increase benefit and may lead to excessive intake of vitamin A, which can be harmful over time.

When Is the Best Time to Use Seven Seas Pure Cod Liver Oil Maximum Strength?

There is no strict rule about timing, but taking your capsule with a meal that contains some dietary fat — such as breakfast with eggs or lunch with avocado — helps your body absorb the fat-soluble vitamins A and D more efficiently. Many people find a morning routine works best, as it's easier to remember alongside other daily habits. Avoid taking it on an empty stomach if you are prone to nausea.

How Long Can You Use Seven Seas Pure Cod Liver Oil Maximum Strength For?

This supplement is designed for ongoing daily use as part of a balanced diet and healthy lifestyle. There is no set maximum duration for healthy adults taking the recommended dose. However, it is good practice to review your supplement routine with your GP or pharmacist at least once a year, particularly if your health circumstances change or you start new medications. Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

What Are the Most Common Side Effects of Seven Seas Cod Liver Oil Maximum Strength?

Most people who take cod liver oil capsules at the recommended dose experience no significant side effects. When reactions do occur, they are usually mild and related to the digestive system. Taking the capsule with food — rather than on an empty stomach — is the single most effective way to reduce these effects.

  • Fishy aftertaste or fishy-smelling breath
  • Mild nausea, particularly if taken without food
  • Loose stools or mild diarrhoea
  • Burping or flatulence
  • Bloating or mild abdominal discomfort

What Are the Less Common Side Effects of Seven Seas Cod Liver Oil Capsules?

Less commonly, some individuals may notice effects that are not directly related to the digestive system. These are rare at the recommended dose of one capsule per day, but worth being aware of — particularly if you are taking other supplements containing vitamins A or D at the same time.

  • Headache — may occur if vitamin A intake becomes excessive over time
  • Dry or itchy skin — occasionally associated with changes in fat-soluble vitamin levels
  • Increased tendency to bruise or bleed — relevant if you are on anticoagulant therapy
  • Skin rash or itching — may indicate a sensitivity or allergy to fish products

What Are the Serious Side Effects of Seven Seas Cod Liver Oil Maximum Strength?

Serious side effects are uncommon at the recommended dose, but you should be aware of the signs that require prompt medical attention. Allergic reactions to fish-derived products, while rare, can be severe. Stop taking this product immediately and seek emergency medical help if you experience any of the following:

  • Swelling of the face, lips, tongue, or throat
  • Difficulty breathing or swallowing
  • Severe skin reaction such as widespread hives or blistering
  • Signs of vitamin A toxicity with prolonged excessive use: bone pain, hair loss, or blurred vision

What Should You Do If You Experience Side Effects of This Supplement?

For mild side effects such as nausea or a fishy aftertaste, try taking the capsule at the start of a meal rather than after it, and ensure you drink a full glass of water. If side effects persist or worsen after a week of use, stop taking the supplement and speak to your pharmacist. Do not simply increase the dose in the hope that side effects will resolve — this will not help and may make things worse.

Can Seven Seas Cod Liver Oil Interact With Other Medicines?

Yes — omega-3 fatty acids can interact with certain medicines, and it is important to flag this to your healthcare team. The most clinically significant interaction is with anticoagulant medicines such as warfarin. High-dose omega-3 supplementation may enhance the blood-thinning effect of warfarin, increasing the risk of bleeding. Your GP may need to monitor your INR more frequently if you start taking cod liver oil alongside warfarin. Orlistat, a weight loss medicine, can also reduce the absorption of fat-soluble vitamins including A and D, potentially reducing the effectiveness of this supplement. If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

We’re a safe and
regulated UK service

Registered Pharmacy Badge

Lowest Price Guarantee

We're convinced you won't find your treatment cheaper, but if you do we'll refund the difference.

Find out more

100% discreet packaging

We're convinced you won't find your treatment cheaper, but if you do we'll refund the difference.

Find out more

Agent

Need help?
Talk to our friendly experts now

How our service works

Service Setup

Service setup

Discreet Packaging

Discreet packaging

Express Delivery

Express delivery