In this video I have explained the activation of vitamin D in the liver and kidney by hydroxylation process. Regulation of active vitamin D3 by PTH (parathyroid hormone), 24-hydroxylase and active vitamin D itself. Main function of vitamin D is to regulate calcium and phosphate levels in the blood. Other functions of vitamin D have been revealed by recent research like its role in preventing tumor formation, immune mechanism, insulin sensitivity.
Sunlight exposure is the source of vitamin D from our skin.
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