Solgar's Super Cod Liver Oil softgels contain a complex combination of vitamins A, D-3 and omega-3 fatty acids EPA and DHA. These nutrients are generally low in the diet. Solgar's cod liver oil is only guaranteed from non-contaminated fish liver (cod from Norway). Cod liver oil contains vitamins A, D and omega-3 fatty acids. Vitamin A supports the resilience of the mucous membranes. Vitamin D plays a role include the bone and the immune system. Vitamin D deficiencies are common (children, elderly and people with heavily pigmented skin), especially in winter months. Omega-3 fatty acids support the immune and nervous systems.