Many of us eat fish as part of a healthy diet. Full of healthy fat and nutrients, it’s a staple for people around the globe. But there’s another side of fish that’s less positive -- a possible link between mercury in fish and ALS. Joining us this week on “Take Care” are two researchers of a recent study that found that eating certain types of fish may increase the risk of developing ALS . The researchers are Dr. Elijah Stommel , a professor of Neurology at the Geisel School of Medicine at