We are one Mediterranean country bathed in sunshine most of the year. Yet we have a deficiency in vitamin D, or else vitamin sun. To see ... light our bodies need vitamin D3! Vitamin D is a very important fat-soluble substance, which was discovered in the search for the cause of rickets and osteomalacia in children. It is the only one of the vitamins produced on our body, and even more specifically, is produced to the skin by the action of sunlight and ultraviolet radiation in the most active form of D3, the cholecalciferol. Numerous scientific studies in recent years have revealed to us the D3 many important health properties. Platinum formula ... the best absorbable form of vitamin D (D3, cholecalciferol).