Omega 3 fatty acids are a key family of polyunsaturated fats. Human body can not make omega 3 fatty acid and must get them from foods including fish, vegetable oils, nuts, seeds and leafy vegetables. There are 3 main Omega 3 fatty acids – EPA, DHA and ALA. Studies has shown that Omega 3 fatty acids help heart beat at a steady clip, maintain healthy blood pressure and improve blood vessel function. At high doses, Omega 3 fatty acids lower triglycerides and the risk of atherosclerosis.