EWG enrolled in a study 254 women who eat at least two meals of seafood, fish or shellfish every week. They measured the amount of mercury in their hair to assess how much mercury was in their bodies.
They found that almost 30 percent of their participants had too much mercury exposure according to Environmental Protection Agency guidelines for pregnant women.
If you want to eat seafood (I don’t eat it at all myself), EWG will make a personalized seafood list for you that gives you the benefits of eating seafood with the least amount of mercury.