Seaking Capsule contains Cod liver oil. Cod liver oil is a nutritional supplement derived from liver of cod fish. As with most fish oils, it has high levels of the omega-3 fatty acids, eicosapentaenoic acid and docosahexaenoic acid. Cod liver oil is a nutrient-dense source of essential vitamins including vitamin D and vitamin A as well as anti-inflammatory omega-3 fatty acids. Cod liver oil contains certain fatty acids that prevent the blood from clotting easily. These fatty acids also reduce pain and swelling. Fatty acids have many double bonds that are prone to oxidation. Cod liver oil is thought to help relieve joint stiffness associated with arthritis, have a positive effect on cardiovascular health, and help repair wounded teeth, nails, hair, and skin.