Vitamin D3-5

Vitamin D (cholecalciferol) is a pre-hormone that has long been known for its important role in regulating body levels of calcium and phosphorus, and in mineralization of bone.

Vitamin D is metabolized into a potent steroid hormone called calcitriol. More recently, it has become clear that receptors for calcitriol, are present in a wide variety of cells and that calcitriol has biologic effects which extend far beyond control of mineral metabolism.

It is believed that vitamin D and its metabolites play an important part in the regulation of genes involved in cell growth, differentiation and proliferation. By promoting differentiation and inhibiting proliferation, vitamin D may become an important factor in cancer prevention and therapy.

Through its regulation of genes, calcitriol controls the production of immune factors known as lymphokines, which effect cell-mediated immunity functions.

Supplement Facts

FAQs

What is vitamin D used for? 
Vitamin D may prevent autoimmune disease, osteoporosis, and some pulmonary conditions. Vitamin D deficiency is common in the higher latitudes. It helps the body to absorb calcium for bones and teeth.

How safe is vitamin D?
Oral vitamin D is very well tolerated. High doses may interfere with the activity of certain statin drugs used to treat elevated cholesterol.