According to Healthline, fish is a great source of omega-3 fatty acids, which the human body cannot create on its own. Fish twice a week improves heart health.
However, not every fish is the same. Many pollutants, such as mercury and polychlorinated biphenyls, pose serious threats to the natural world.
1) Alaskan salmon
5) Rainbow trout
7) Striped bass
8) Wild Alaskan pollock
9) Arctic char
1) Imported swordfish
2) Imported marlin
5) Orange Roughy
WebMD says that some kinds of tuna, like bluefin and bigeye tuna, may also have higher levels of mercury.
1) Troll-caught or pole-caught albacore tuna
2) Farmed oysters
3) Farmed rainbow trout
4) Wild-caught salmon from Alaska
5) Wild-caught sardines from the Pacific Ocean