Q. I love tuna fish and salmon and eat at least four or five servings a week (especially tuna). I am trying to get pregnant and read that a pregnant woman should limit her intake of fish. Is that true?
A. There is a growing concern that mercury in certain fish could pose a problem for the developing fetus. For some time the FDA has warned pregnant women to avoid shark, swordfish, king mackerel and tilefish. Such big fish are higher in mercury.
Now experts are warning that pregnant women should also limit their consumption of relatively safe fish, such as canned tuna, to no more than 12 ounces a week. That’s two cans of tuna–or just one can plus another serving of fresh fish, which might include salmon.

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