Vitamin D3 nutritional supplement for those who do not produce the necessary amounts of vitamin D. Vitamin D promotes the absorption & utilization of calcium and phosphorus from the intestine and their deposition into the bones, while controlling their blood levels. Vitamin D also contributes to the healthy condition of the bones and teeth and to the normal functioning of the muscles and the immune system. It contains small sized, easy-to-swallow capsules and is suitable for vegetarians.