Supermarket chains posting FDA advice for children and women about eating fish containing mercury

"The FDA advised women of childbearing age and children not to eat shark, swordfish, king mackerel or tilefish and to limit consumption of all other fish to 12 ounces (two average meals) a week, including no more than six ounces of albacore tuna or tuna steaks. Some supermarket chains including Wild Oats, Safeway and Whole Foods, have independently required their stores to post signs bearing this advice."

"While the warning is targeted mainly toward women and children, studies suggest that mercury can contribute to neurological, cardiovascular and immune problems even in adults who are heavy fish eaters."