9 Kinds of Fish You Shouldn’t Eat Tuna contains lots of mercury, especially blackfin and bluefin tuna. Additionally, there’s precious little free-grown tuna in the stores because it’s nearly extinct. All the fish comes from farms where it’s fed with antibiotics and hormones. Previous Next 1 2 3 4 5 6 7 8 9 2017-06-15 admin Share ! tweet