Quest Marine Omega 3 is a concentrated source of the essential Omega 3 fatty acids EPA & DHA. These are sources of chemical messengers that play a major role in the regulation of the cardiovascular system, the nervous system and the inflammatory response. A higher ratio of Omega 3 to Omega 6 is associated with good health. It is used to support cardiovascular, joint and mental well-being. This is a high-strength, concentrated marine oil supplement - which also has natural Vitamin E as an antioxidant. The purity of the marine fish oil is confirmed using natural filtration.