Fish

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Fish

A popular dietary supplement in recent years has been fish oil, and there's certainly good reason for that trend. Eating fish, or taking fish oil supplements, provides the body with omega-3 fatty acids that help protect against heart disease, reduce inflammation, decrease the risk of arrhythmia and lower blood pressure. Omega-3 fatty acids are found largely in coldwater fish, including salmon, herring, tuna and sardines.

Studies have even shown that people who eat a lot of fish live longer. One study of middle-aged American men found that those who ate fish two to three times per week had a 40 percent lower mortality rate than those who did not. In men who had previously suffered a heart attack, eating fish twice a week actually lowered their mortality rates by 29 percent [source: Walford].

Fish is also a great source of protein and, unlike other meats, is low in saturated fat. The American Heart Association recommends eating omega-3-rich fish at least two times per week [source: American Heart Association].

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