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Now Vitamin D-3 1,000 IU dietary supplement contains vitamin D in the active form of cholecalciferol. Vitamin D3 or cholecalciferol is a form similar to that produced in the body by sun exposure, and is therefore more absorbable.
Vitamin D contributes to the normal absorption / utilization of calcium and phosphorus, to normal levels of calcium in the blood, to the maintenance of normal bones, to the maintenance of normal muscle function, to the maintenance of normal teeth, to the normal functioning of the immune system, and has a role in the process of cell division.
Vitamin D also helps reduce the risk of falls associated with body instability and muscle weakness. Falls are a risk factor for bone fractures among men and women aged 60 and over.