7. Imported Farmed Shrimp

Most pesticides used in shrimp farming are banned in the U.S., but remain common globally. These shrimp are also treated with large amounts of antibiotics, posing a risk of antibiotic-resistant bacteria when handled raw.

8. Imported King Crab

About 75% of crab sold in the U.S. is imported from Russia, where unsustainable fishing is rampant. Authentic Alaskan King Crab is only caught in Alaska, but mislabeling is widespread. If a product says both “imported” and “Alaskan,” it’s likely mislabeled.

9. Orange Roughy

These long-lived fish don’t mature until around 20 years old. Overfishing has severely impacted their population, and their slow reproduction makes recovery difficult. They also contain high mercury levels.

10. Shark

As top predators, sharks accumulate extreme mercury levels. Overfishing has also depleted their populations, as they reproduce slowly.

11. Atlantic Bluefin Tuna

One of the most overfished species, Bluefin tuna is now highly vulnerable to extinction. Being a large predator, it also has high mercury content.

12. Swordfish

Another predator, swordfish has dangerously high mercury levels. The EDF advises women and children to avoid it completely and recommends men limit consumption to once a month.

13. King Mackerel

Both King Mackerel and Spanish Mackerel have high mercury levels and should be avoided, especially by women and children.

14. Grouper

Grouper faces overfishing, contains moderate mercury levels, and is often subject to seafood fraud. Studies found that up to 87% of seafood labeled as grouper, cod, or snapper may actually be a cheaper substitute.

Being mindful of your seafood choices not only protects your health but also helps preserve marine ecosystems for the future.