Unless you eat oily fish 2 to 3 times a week or are already taking fish oil supplements, it's pretty much a sure bet you are not getting enough DHA and EPA omega-3 fatty acids in your diet.

So what is fish oil and what's all the fuss about?

As you might expect it comes from oily fish tissues and usually contains the omega-3 fatty acids DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid).

All the fuss is about what researchers believe consuming oily fish can do to make you healthier.

Just think for a moment by simply eating the right type of fish twice a week, or by taking 2 easy to swallow capsules a day can improve your body's health and functioning. Some of the main beneficiaries are your heart, brain, and arteries, helping arthritis sufferers and arguably the biggest benefit is its anti-inflammatory ability.

You can get oil from many different types of fish including sardines, salmon, trout, herring's, hoki and tuna to name just a few. Some of these fish are naturally enough better than others, some have more DHA whilst others more EPA. Therefore, to select the most beneficial for your health you need to be well informed.

However if you choose to use a supplement instead of trying to eat oily fish at least twice a week, there are some things you need to be aware of.

Not all fish oil supplements are equal -- some contain lots of oil but very little fatty acids, others have more EPA than DHA while some brands recommend you take 10 or more capsules a day.

How to select the best brand to buy is to weigh up the most important issues -- so you can make a wise well-informed decision.

These are -- what type of oily fish are being caught, how polluted is the ocean where they come from, are they processed nearby to where they are caught, do they use a molecular distillation oil extraction process, what is the percentage of oil to omega-3 fatty acids, what is the percentage of DHA to EPA, what is the daily dosage and finally are they competitively priced.

You probably now realize there is more to what is fish oil than your originally thought. Therefore, if you choose to buy fish oil supplements instead of eating more oily fish make sure you understand all the issues mentioned above, so you can buy the best product for the most competitive price.

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