Tilapia may grace your table more often than cod, but this fish isn’t any safer if it’s coming from China. Much like cod, tilapia sit in tiny tanks teeming with fish. The water in the tanks is full of toxic chemicals and other damaging substances that you never want to put in your body.

If your fish is imported from China, don’t buy it. Before they end up on your dinner plate, the fish have spent their lives soaking up the chemicals around them. They’re perfectly primed to pass those chemicals to you, so shop with care if you’re planning a seafood-themed dinner.