NOW Vitamin D3 1000 IU Softgels 180'sNOW Foods Vitamin D3 1000 IU Softgels Vitamin D3 by NOW Foods provides vitamin D in the form of cholecalciferol (Vitamin D3), the form naturally produced by the body. Vitamin D plays an important role in supporting normal calcium and phosphorus absorption, which is essential for maintaining healthy bones and teeth. Vitamin D3 also supports normal immune system function and is commonly used by individuals who may have limited sun exposure or