About Vitamin D3 (cholecalciferol)
Vitamin D3 is the form of vitamin D called cholecalciferol. Cholecalciferol is the most widely known of the vitamin D series and is a fat soluble vitamin that is stored to some degree in the body. It is used as a dietary supplement, for the treatment of vitamin D deficiency, or to prevent a deficiency. Spring Valley Vitamin D3, Kirkland Signature Vitamin D3, Nature's Way Vitamin D3,