Cod Liver Oil is a natural source of the fat-soluble vitamins A and D, required for the maintenance of good health. Vitamin A, also called retinol, is necessary for the health and protection of eyesight, skin, and membranes, and supports good night vision. It is also a critical factor in improving immune function.Vitamin D3 is the cholecalciferol form of vitamin D. It plays a critical role in the development and maintenance of bones and teeth and is an essential vitamin for the prevention against osteoporosis. This is because it helps with the absorption of calcium and phosphorus from the intestine, which are required for normal bone mineralization and building bone density.Cod Liver Oil from Webber Naturals contains 1250 IU of vitamin A, 400 IU of vitamin D3, and a minor amount of essential fatty acids in each softgel. It is an ideal choice for people who want a natural source of vitamins A and D for added vision, skin, immune, and bone support.