Jones G and Prosser DE. 1  The Activating Enzymes of Vitamin D Metabolism (25- and 1α-Hydroxylases). In Vitamin D (Third Edition) by Feldman D, Pike JW and Adams JS, 2011. 2  Plum LA and DeLuca HF. The Functional Metabolism and Molecular Biology of Vitamin D Action.
https://www.vitamindcouncil.org/the-physiology-of-vitamin-d/
Does sunscreen inhibit the production of Vitamin D? Vitamin D is produced in the skin when it’s exposed to UV radiation from the sun. Sunscreens prevent the sun’s UV radiation from penetrating the skin and therefore may diminish production of vitamin D. Obtaining the balance of sufficient sunshine for vitamin D production whilst practising safe sun exposure is important.
https://ostelin.com.au/sunlight-vitamin/
How does skin type affect vitamin D production? People with naturally dark skin may not be obtaining sufficient vitamin D from sun exposure. This is because dark skin, compared to lighter skin, contains higher amounts of melanin – melanin impedes vitamin D synthesis. 10 Light coloured skin naturally contains less melanin hence it is able convert the sun’s UV rays into vitamin D more readily.
https://ostelin.com.au/sunlight-vitamin/
The last key piece to the vitamin D system is what is called the “vitamin D receptor” (VDR). When 1,25(OH)₂D is made, it binds to VDRs all over your body. These bounded VDRs can now tell local genes how to express themselves. When genes express themselves, they are expressed in proteins and enzymes.
https://www.vitamindcouncil.org/the-physiology-of-vitamin-d/
Vitamin D₃ is made in your skin. When you expose your skin to ultraviolet B, something called “photolysis” happens of a chemical called 7-dehydrocholesterol, which turns it into previtamin D₃. This happens on the outermost layer of your skin, called the epidermis.
https://www.vitamindcouncil.org/the-physiology-of-vitamin-d/
Exposure to the sun’s ultraviolet (UV) rays is required for vitamin D3 (cholecalciferol) to be produced. Vitamin D3 is synthesized in the skin once your unprotected skin receives exposure to sunlights UV rays. The sun emits three different types of radiation, UVA, UVB and UVC.
https://ostelin.com.au/sunlight-vitamin/
The process it goes through is called “hydroxylation.” This chemical the liver makes is called a number of things, including: 1  calcidiol. 2  25(OH)D. 3  25-hydroxyvitamin D. 4  vitamin D level. 5  blood vitamin D. 6  vitamin D serum concentration.
https://www.vitamindcouncil.org/the-physiology-of-vitamin-d/
8 As UV rays must penetrate the skin to produce cholecaliferol (vitamin D3), clothing can reduce its production. Clothing is a wise choice for protection from the sun since it offers protection for as long as you wear it.
https://ostelin.com.au/sunlight-vitamin/
This process is also called “hydroxylation.” This chemical is called a number of things, including: 1  Calcitriol. 2  1,25-dihydroxyvitamin D. 3  1,25(OH)₂D. 4  Activated vitamin D.
https://www.vitamindcouncil.org/the-physiology-of-vitamin-d/
In the liver, vitamin D is turned into a chemical called calcidiol. The process it goes through is called “hydroxylation.” This chemical the liver makes is called a number of things, including: calcidiol. 25(OH)D. 25-hydroxyvitamin D. vitamin D level. blood vitamin D. vitamin D serum concentration.
https://www.vitamindcouncil.org/the-physiology-of-vitamin-d/
what vitamin is produced in the skin? what is the stimulus for the production of this vitamin?
Vitamin D is produced in the skin when it’s exposed to Ultra Violet radiation from the sun. Vitamin D is produced in the skin when it’s exposed to stimulus Ultraviolet radiation from the sun.