Letters to the Editor
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What kind of fish?!
You can find out about the various mercury levels in different fishes on the internet. Salmon is supposed to be quite low and the canned, wild variety is a great sub for tuna. Farmed salmon is not as good for you as wild and often has PCBs and other toxics from the close quarters the fish are raised in and poor farming practices. Much comes from Chile(I think) and is a direct result of Walmart's demands on their fising practices. Alaskan salmon is wild be definition just like buffalo meat is hormone free by definition because if Native American type rules/agreements. Tuna is pretty full of mercury and swordfish is totally out for women who might like to have kids.
I also have to stop eating the bass we catch in the river because they are full of mercury and some perch/panfish we catch are full of lead according to the MO Dept of Wildlife. The toxics depend on where the fish came from and the mercury depends on what the fish eats. If it eats other fish, there is bioaccumulation and that's the problem. It's complex, but it sounds like the study may show that it's worth wading through all the literature and choosing the fish that's right for you. Trout anyone? or maybe just some flax seeds....