Consumption of fish and seafood high in omega-3 fatty acids has been linked with numerous health benefits, including a lower risk of cancer and cardiovascular disease.
Fish oil can be obtained from eating fish or by taking supplements. Fish that are especially rich
in the beneficial oils known as omega-3 fatty acids include mackerel, tuna, salmon, sturgeon, mullet, bluefish, anchovy, sardines, herring, trout, and menhaden. They provide about 1 gram of omega-3 fatty acids in about 3.5 ounces of fish.
Fish oil on Memorial Sloane Kettering site
Fish oil, Omega 3 and seafood with antiangiogenic effect