The healthiest fish to eat are rich in nutrients like omega-3 ... Low-mercury fish include anchovy, Atlantic mackerel, catfish, freshwater trout, haddock, salmon, sardines, tilapia, and more.

In addition to protein content, the American Heart Association says eating fish twice per week can also lead to better cardiovascular health. But not all fish are equal. Some are much healthier ...

clean up our rivers and restore our freshwater habitats to good health. " Getty Images Large fish such as sturgeon are dying out faster Carmen Revenga of The Nature Conservancy said freshwater ...