The active hormone binds into the Vitamin D receptor (VDR) that is an essential component to most cellular and immune functions
The body needs the active Vitamin D3 hormone for improved immune and cellular functions and to aid in the absorption of calcium, which is essential in helping to form and maintain strong bones. Recent research has even indicated that active Vitamin D3 hormone provides protection against osteoporosis, high blood pressure, cancer, and several autoimmune diseases.
The body needs a continuous daily supply of stable Vitamin D3 to be converted into and maintain healthy levels of the active Vitamin D hormone.
One of the main benefits of maintaining optimum levels of the compound is that it regulates calcium (as well as phosphate levels) in the blood. Calcium is absorbed by the body (primarily in the intestines) with the help of Vitamin D. This helps the body maintain proper osterclast levels, which in turn promotes calcium resorption (as well as resorption of phosphate) to help maintain bone development as well as bone mass, which is also vital for healthy teeth.
By regulating calcium and phosphate levels (thereby preventing rickets in children and osteomalacia in adults), it is responsible for numerous biological functions such as neuromuscular function, increased bone density and development, and stimulation of electrical impulses for nerve cells, as well as muscle contractions.
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