English, asked by venudeshmukh82, 11 months ago

how is vitamin D formed?

Answers

Answered by michaeljohnjohn85
1

Explanation:

The skin is responsible for producing vitamin D. During exposure to sunlight, ultraviolet radiation penetrates into the epidermis and photolyzes provitamin D3 to previtamin D3. ... Therefore, the skin is the site for the synthesis of vitamin D and a target tissue for its active metabolite

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