MegaRed contains oil from 100 percent pure Antarctic krill, tiny crustaceans that thrive in the pristine waters of the Antarctic Ocean. It provides an optimal combination of omega-3 fatty acids DHA (docosahexaenoic acid) and EPA (eicosapentaeonic acid), essential fatty acids that may reduce the risk of coronary heart disease.** MegaRed has been shown to significantly increase your omega-3 index in just 30 days.*** The Omega-3 Index is a measure of the amount of omega-3 fatty acids in your body's cells. A higher Omega-3 Index is associated with better cardiovascular health and other health benefits.