In this review of studies investigating the effects of omega-3 fatty acids on the rate of cardiovascular events, the authors conclude that “marine omega-3 fatty acids are effective in preventing cardiovascular events, cardiac death, and coronary events, especially in persons with high cardiovascular risk.” Authors included clinical trials and randomized controlled trials of omega-3 fatty acids in capsules or through dietary intake for 6 months or longer, written in English. A 10% overall decrease in risk of cardiovascular events (of any kind) was found, a 9% decrease in risk of cardiac deaths, an 18% decrease in risk of coronary events (fatal and non-fatal), and a 5% reduction of risk was found for lower total mortality. Most the studies included patients with high cardiovascular risk. The authors conclude that omega-3 fatty acids may be beneficial in the prevention of cardiovascular events, particularly in those with high cardiovascular risk.
