Fish is an excellent source of protein and, unlike fatty meat products, it’s not high in saturated fat. Quite the opposite..fish provide the lifesaving long chain unsaturated fats that most people aren't getting. Yes, fish is a rich source of the most important omega-3 fatty acids EPA and DHA. Omega-3 fatty acids benefit the heart of healthy people, and those at high risk of, think family history...or who already have cardiovascular disease.
Research has shown that omega-3 fatty acids decrease risk of arrhythmias (abnormal heartbeats), which can lead to sudden death. An Italian study ( GISSI) showed that in men who had already had a heart attack fish oil supplements (840 mg EPA/DHA daily) reduced sudden cardiac death rates by 45%. Omega-3 fatty acids also decrease triglyceride levels, slow growth rate of atherosclerotic plaque, protect against inflammation and lower blood pressure (slightly).
What you need to know...
The American Heart Association recommends eating fish (particularly fatty fish) at least two times (two servings) a week. Each serving is 3.5 ounce cooked, or about ¾ cup of flaked fish. Fatty fish like salmon, mackerel, herring, lake trout, sardines and albacore tuna are high in omega-3 fatty acids.
The American Heart Association recommends that anyone who has heart disease get 1000 mg combined EPA and DHA (the Omega 3's in fish oils or fish) daily.
The American Heart Association recommends that anyone who needs to lower their triglycerides get 2000-4000 mg combined EPA and DHA daily.
Source: AHA Scientific Statement
Fish Consumption, Fish Oil, Omega-3 Fatty Acids, and Cardiovascular Disease
GISSI Dietary supplementation with n-3 polyunsaturated fatty acids and vitamin E after myocardial infarction: results of the GISSI-Prevenzione trial. Gruppo Italiano per lo Studio della Sopravvivenza nell’Infarto miocardico. Lancet.1999; 354: 447–455