8 Fish Types You Should Never Include in Your Diet

Chilean sea bass, or Patagonian toothfish, has now been nearly fished to commercial extinction. Unless people completely stop eating Chilean.

Chilean Sea Bass

Orange roughy can live up to 150 years, accumulating high levels of mercury. Since they live such long lives, they do not reach maturity.

Orange Roughy

Marianne Cufone, executive director of Recirculating Farms Coalition, warns, "With fewer sharks around, the species they eat.


Mackerel is certainly packed with healthy omega-3s. However, the Food and Drug Administration warns pregnant women and children.

King Mackerel

Atlantic cod stocks collapsed in the mid-1990s and were in such disarray that the species has been listed as one step above endangered.

Atlantic Cod

Oceana, the world's largest ocean conservation group, conducted an investigation and identified the nine worst fisheries in the U.S. based.

Atlantic Flatfish

Grouper is a fish you should never eat due to its moderately high mercury levels. This species is also highly vulnerable to overfishing.


Catfish is popping up as a menu item all over the U.S., but you're likely getting a fish called pangasius (Vietnamese catfish) or swai fish.

Imported Catfish