While cod might be an easy choice to throw together a fish-themed dinner, the fish are raised in terrible conditions in China. The cod are thrown into small areas teeming with thousands of fish. Not only are these areas cramped and dirty, but they’re also filled with sewage and garbage.

In short, cod are raised in highly toxic conditions. When you eat the fish, you’re allowing some of that toxicity into your body. Take our advice—stay far away from cod imported from China.