How does the human body produce vitamin D?

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Mudassir Ali
Feb 03, 2020 12:46 PM 0 Answers
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Mudassir Ali
- Feb 03, 2020 12:46 PM

Actually there are different forms of vitamin D in human body, it is involved in several metabolic steps.
The epidermal layer, which is one layer of your skin, contains highly concentration of 7-dehydrocholesterol, a precursor of vitamin D.
Under the sunlight, ultraviolet (especially the part of UV B radiation) will convert 7-dehydrocholesterol into vitamin D. These vitamin D will be carried to the liver in the bloodstream.
In liver, vitamin D will be converted into calcidiol, and then transported to kidney in the bloodstream.
In kidney, calcidiol will be converted into calcitriol, which is also called 1,25-dihydroxycholecalciferol, or 1,25-(OH)2 vitamin D3, an active form of vitamin D.
Due to 1,25-(OH)2 vitamin D3 is the active form, it plays real effects in human body.

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