Krill oil is rich with omega-3 fatty acids, mainly Eicosapentaenoic acid (EPA) and Docosahexaenoic acid (DHA), which can help relieve arthritis symptoms and support heart and cardiovascular health and normal healthy cholesterol levels. Krill oil also provides a rich source of astaxanthin, a potent and natural antioxidant which is 550 times more powerful than vitamin E and 11 times more powerful than beta-carotene at free radical scavenging. Unlike many other antioxidants, astaxanthin crosses the blood-brain barrier, where it could theoretically protect the eye, brain and central nervous system from free radical damage.