Compare every Fish Oil product across UK retailers on Suppio, ranked by true value - price per active dose, not pack size. Prices refreshed daily.
Marine oil rich in omega-3 fatty acids EPA and DHA
We rank Fish Oil by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Fish oil is a type of marine oil that is rich in omega-3 fatty acids. These are essential fats, meaning the body cannot make them on its own, and they specifically include two important types called EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid).
It is primarily used to provide the body with the EPA and DHA mentioned above. These specific fats are used to support overall health, particularly for the heart and brain.
The oil is extracted from the fatty tissues of oily fish. This oil is then purified to remove unwanted substances and concentrated to increase the levels of omega-3s before being put into softgel capsules or liquid bottles.
Fish oil is generally mid-range in price. This is because the cost of sourcing high-quality fish and the industrial purification process required to remove contaminants makes it more expensive than basic plant oils, but high global supply keeps it from being a luxury ingredient.
| Purpose | Typical studied dose | Evidence |
|---|---|---|
| reducing cardiovascular events | 4 grams per day of purified EPA | emerging |
| general health | 250 mg daily of combined EPA and DHA | established |
| lactation | 1,000 mg daily of combined EPA and DHA | established |
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Marine oil rich in omega-3 fatty acids EPA and DHA
We rank Fish Oil by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.