EWG's analysis shows that:
FDA's recommendation of 76 6-ounce fish meals during pregnancy could actually be detrimental to the health of unborn children. Fish are an important part of a healthy diet and women should be encouraged to eat fish with low methylmercury levels during pregnancy. But if American women ate a varied diet of FDA's recommended 12 ounces of fish a week (and none of the four prohibited fish) they would expose more than one-fourth of all babies born each year (1 million infants) to a potentially harmful dose of methylmercury for at least one month during pregnancy. About 20,000 of these children would be exposed to a dose of methylmercury that increases the risk of adverse neurological effects for the entire pregnancy.