Vitamin D-3 2000 IU (50 mcg), 2 Oz, Source NaturalsSource Naturals Vitamin D3, 2 Oz, 2000 IU (50 mcg) is a dietary supplement designed to support various aspects of health. This product helps maintain healthy calcium and phosphorus levels in the body, which are essential for strong bones. It also supports muscle strength in older adults and plays an active role in promoting a healthy immune response. The supplement contains Vitamin D3 (Cholecalciferol), which is the form of Vitamin D that the body