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ICSE Class 9 Answered

How does skin produce vitamin D , as it is said that we get vitamin D from the sun 

 

Asked by Debiprasad | 16 Oct, 2019, 07:00: PM
Expert Answer
  • Vitamin D is produced by the skin when it is exposed to sunlight.
  • Vitamin D exists in two forms, vitamin D2 and Vitamin D3.
  • Vitamin D2 is obtained from the UV irradiation. UV light from the sun strikes the skin, and humans synthesize vitamin D3.
  • Human beings do not make vitamin D2, and most oil-rich fish such as salmon, mackerel, and herring contain vitamin D3
Answered by Sheetal Kolte | 17 Oct, 2019, 12:14: PM

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