Thirty academic scientists, medical doctors and consumer advocates wrote to FDA and EPA last Friday, urging them to strengthen the Federal fish consumption advisory for mercury and also to do a better job of warning consumers. “Recent research shows that both beneficial effects of fish nutrients and harm from mercury exposure occur in a baby’s developing brain when a pregnant woman eats ordinary amounts of fish,” said Edward Groth III, PhD, a Mercury Policy Project science consultant. “There is no evidence of a threshold for the harmful effects of mercury, and even the amount in a single can of tuna should probably be avoided.”