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Anonymous
Fish oils contain a much smaller percentage of mercury than eating all of the fish to get the benefits of the oil would.
That being said there are some brands that are more pure than others. Look these things up and find a brand in your area.
Me, I started taking fish oil for purely cosmetic reasons, I wanted clearer skin. It also made my hair a little stronger and I lost a small amount of weight. It did nothing for my nails, however.
And it's not something I can measure, but it's supposed to be good for your heart.
We used to get a larger amount of Omega-3s from the meats we eat, but here in the US where cows don't eat grass anymore, that's no longer true.
The fats that you get from an animal source are going to be different than the flax seed oil. When I run out of my fish oil and switch to my flax seed (which I keep a bottle of for such reasons) I find it doesn't work as well on my skin.
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