Vitamin D3 (cholecalciferol) is a fat-soluble vitamin that helps your body absorb calcium and phosphorus. Having the right amount of vitamin D3 is important for building and keeping strong bones. Vitamin D is used to treat and prevent bone disorders (suchas rickets, osteomalacia). Freedome supplements Vitamin d3 Tablets are nothing short of amazing. Our Vitamin d3 tablets are small yet effective providing 1000iu of goodness.