There’s lots of Omega 3 Fish Oil supplements around, but which are the best?
So you know you ought to be taking Omega 3 supplements for your health, but you’re wondering how to choose between all those fish oil capsules on the market to find the best ones.
So how do you find the best Omega 3 fish oil capsules, or are they all the same?
No they aren’t all the same. There’s quite a number of things you ought to think about. They boil down to 4 main areas. The amount of DHA that you get in your capsules, and the purity of the oil used in the capsules as well as the freshness of the fish oil and the anti inflammatory properties of the particular fish oil capsules.
We know there are some fish oil supplements that seem ridiculously cheap when you look at them, and if you ignore all other factors then they are cheap. But you can’t ignore all the other factors.
1. The amount of DHA in the fish oil supplements.
DHA is the main Omega 3 fatty acid that is of primary benefit to your health. It’s not the only one, EPA is also important, but DHA is the most important. So the first thing you need to do to compare fish oil capsules is to look at the amount of DHA, and to a lesser extent EPA, in the capsules that you are looking at.
Because if one brand of capsules are half the price of another but have half the DHA (and EPA) of the other then they aren’t any cheaper because you’ve got to take twice as many to get the same amount of Omega 3 fats.
Now you’ll find some Omega 3 capsules on the market that don’t tell you how much DHA or EPA are in them. Avoid these, it isn’t hard to put this on the label and if they don’t put it on the label you have to assume they’ve left it off for a reason. There isn’t a lot in there.
Many fish oil capsules are 18/12. This means that 1000 mg (1 gram) of fish oil contains 18% EPA and 12%DHA. This means that, if the capsules are 1000 mg capsules you’re getting 180 mg of EPA and 120 mg of DHA in every capsule.

Not all fish oil supplements are 18/12 though. The best fish oil supplements actually contain 280 mg of DHA, over double the amount of your average 18/12 capsules.
But this information alone isn’t sufficient to make a choice. There’s more.
2. The purity of the fish oil used in the capsules.
If you’ve read any of our site already you’ll know that fish generally is contaminated with various chemicals that are not good for us like mercury and PCBs. For that reason various US government departments warn against eating too much fish, particularly too much of certain top of the food chain fish.
Fish oil capsules obviously contain fish oil, from fish. So why aren’t the contaminants in the fish oil? They are, unless it’s decontaminated particularly rigorously. So you need to know a lot more about the purity of the fish oil used in the capsules, to be confident that the capsules you’re taking don’t contain any contaminants.
There’s a number of different decontamination processes, and a range of different standards that manufacturers can adhere to, (or not adhere to if they choose, none are mandatory), and there’s also varying levels of contamination in fish depending on where the fish come from.
The best fish oil supplements use oil from fish from the Southern Ocean south of Australia and New Zealand. The fish here are way less contaminated than those from the North Sea or the Atlantic where many are sourced, those seas being right between 2 major population centers, North America and Europe. Plenty of pollution from land, and from oil rigs.
The best fish oil capsules are molecularly distilled to remove any contaminants that may be there and they adhere to, and exceed, standards way in excess of the harshest of International standards. Basically they are contamination free.
The standards these fish oil capsules are tested to are totally rigorous. For example the best fish oil capsules are tested to a standard for mercury contamination 10 TIMES LOWER than international standards.
3. The freshness of the fish oil used in the capsules.
Fish oil can go rancid, often the reason why you get that “fishy” taste when you burp after taking capsules. Rancid, or oxidized fish oil contains free radicals and free radicals are bad for your health. You don’t want to be unknowingly adding to the levels of free radicals in your body.
The freshness of fish oil can be measured, but it gets quite complicated. If you want to know more about fish oil freshness and you don’t mind reading the technical stuff read this page.

Some companies even put masking fragrances in their capsules to mask the odor of fish oil that may be, ahem, a little less fresh than it could be.
4. The anti inflammatory properties of the fish oil capsules.
Inflammation is one of the major problems in our bodies, and one of the major reasons why Omega 3 fish oils are so good for us is that they are very high in anti inflammatory properties. But the best fish oil capsules are way higher in anti inflammatory properties than “average” fish oil capsules.
Tests show that the best rated fish oil capsules have anti inflammatory properties 2 1/2 times greater than average fish oil capsules. The reasons for this is the unique blend of fish oils from 2 different types of fish (hoki and tuna) that are combined to achieve an extremely high level of effectiveness. If you want to know more about the anti inflammatory properties of Omega 3 fish oil read this page.
So what are the best fish oil capsules?
To us it’s quite clear. The best fish oil capsules are those from Xtend Life, a New Zealand company. Here’s why.
- They have over twice as much DHA as regular 18/12 capsules.
- They use the freshest fish it’s possible to use in the production of fish oil, and the oxidation levels of each batch of oils are tested to extremely exacting standards.
- They source their fish from the cleanest ocean in the world, they process it to maintain maximum freshness and they molecularly distill it to make sure that it meets contmination standards way higher than other international standards.
- Tests show that the anti inflammatory properties of the Xtend Life Omega 3 fish oil capsules are around 2 1/2 times greater than “average” fish oil capsules. Read the rest of this entry
(And make sure you read our page explaining why you need Omega 3 Fish Oil supplements, and find out how to choose the Best Fish Oil Supplements).


