Update 8/1/20. Fish oil supplements are very popular -and for good reason. There is a lot of research that fish oil does a body good. Many studies have shown that the fish oils, EPA and DHA, can lower triglycerides and even lower the risk of a heart attack. Eating fish 2 or 3 times a week (or taking about 1 gram of EPA and DHA) also appears to lower the risk of dying - from everything! But, how …