“Despite their snazzy Internet campaigns, well-publicized investigations, and scary language (’Tuna Roulette!’, ‘The Mercury Menace!’), green-group activists can’t change the simple fact that the mercury levels in the fish we typically eat pose zero health risk to consumers. But there’s more to the story. Ladies and gentlemen, meet selenium. Naturally found in abundance in most fish, selenium is what scientists call an ‘antagonist’ to mercury. How selenium cancels out mercury is still up for debate. But scientists at the Environmental Protection Agency, National Oceanic and Atmospheric Administration, and several major universities have established that it does. The top 25 sources of selenium in the American diet include 16 different kinds of fish. In fact, the average fish on your plate has a selenium-to-mercury ratio of over five to one.” (04/27/06)