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How to Choose the Best Fish Oil

There are dozens of different fish oil supplements on the market, which can make it difficult to choose the best solution. If you're struggling to understand the differences between the seemingly never-ending range of fish oil supplements then this guide is here to help you make an informed decision.

DHA & EPA - The Key Ingredients in Fish Oil

The main reason to take fish oil supplements are two nutrients known as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Both these nutrients have been rigorously studied by scientists over the years, and have been shown to benefit your health in a number of ways.

EPA and DHA both serve to support cardiovascular health and to control inflammation levels. In addition, DHA plays a key role in both brain function and eye health.

Whether you’re looking at fish oil, cod liver oil or omega 3 oils, the key elements are consequently the levels of EPA and DHA that each supplement contains.

Our Top Selling Fish Oil Supplements

For over a decade we've worked hard to offer the highest quality fish oil supplements on the market. In that time, our range has developed in response to customer feedback and scientific advancements. If our reviews are anything to go by then the following supplements are a great place to start...

Cod Liver Oil Capsules 1,000mg



Triple Strength Omega 3 1,000mg



Omega 3, 6 & 9 Capsules 1,000mg



The Differences between Fish Oil, Cod Liver Oil and Omega 3

One of the more muddling elements when it comes to DHA and EPA is understanding the differences between fish oil, cod liver oil and omega 3 oil. After all - are they really any different from one another?

Fish Oil: Fish oil is a general term to define any marine source of EPA & DHA.

Cod Liver Oil: Cod liver oil is not only high in EPA and DHA, but also contains vitamins A & D. While these additional vitamins can make cod liver oil particularly beneficial for most people, it is not recommended for pregnant women.

Omega 3 Oil: Omega 3 oil is typically taken from the body of fish such as anchovies, mackerel and sardines, as opposed to the liver. This typically results in it being higher in the omega 3s, but means it does not contain a significant amount of vitamin A or D.

In conclusion, if you’re eating a balanced diet and/or take a regular multivitamin then the difference between these three supplements is of little importance. They key will be looking for those supplements with the right levels of DHA and EPA.

What is a Beneficial Dose?

When you’re comparing fish oil supplements, it is wise to assess the level of EPA and DHA found in each. This will allow you to deduce the value-for-money that each supplement offers.

For supporting general health and the condition of the heart, brain and eyes, 250mg of EPA and DHA per day is widely accepted to be sufficient.

However, if you are taking fish oil to reduce blood pressure and cholesterol levels, then higher doses are required. The research suggests that for these health concerns, 2-3g of combined EPA and DHA should be consumed daily.

Best Value Fish Oil Supplements

If you decide to take the recommended 250mg of DHA and EPA per day, which supplement works out most cost effective?

Omega 3 Capsules 1,000mg


Two capsules per day.
6.4p per dose.


Triple Strength Omega 3 1,000mg


One capsule per day.
7.2p per dose.


Strongest Fish Oil Supplements

Want to take a stronger dose, such as for supporting joint health?

Triple Strength Omega 3 1,000mg


330mg EPA. 220mg DHA.


Fish Oil and Pregnancy

The fatty acids found within fish oils are very important during pregnancy and early childhood. For optimal brain and eye development, pregnant and lactating women should take an additional 200mg of DHA on top of the recommended 250mg.

It is recommended that pregnant women avoid fish liver oil, as this is usually high in vitamin A. High vitamin A intakes during pregnancy can be harmful to the baby. Finally, fish such as shark and swordfish should be avoided as these are the highest in mercury, which can also be harmful.

High quality fish oil supplements can hold an advantage over fresh fish due to the processes they are exposed to. This means that any impurities or undesired ingredients are removed, just leaving the nutrients that are beneficial to your health.

Perfect Partners

Although fish oil is most commonly used on its own, some customers choose to combine it with other potent nutrients when they have a specific goal in mind.

Curcumin C3 Complex 12,000mg (Turmeric) Capsules


Turmeric contains an active ingredient known as curcumin, which is believed to have powerful anti-inflammatory properties.


Plant Sterols Tablets 800mg


For individuals looking to benefit their cholesterol and triglyceride levels, plant sterols are a popular addition, as they are known to support heart health.


Phosphatidyl Serine Complex


This lesser-known nutrient is found naturally in the brain, but with age levels can start to fall. Consequently, it is often taken alongside fish oil.