UV-B produces vitamin D in our body

Q.  Which UV light is responsible for production of Vitamin D in our body?
- Published on 23 May 16

a. UVB
b. UVA
c. UVC
d. Both a nor b

ANSWER: UVB
 
  • UV-B is responsible for production of vitamin D in our body.
  • UV-B gives much protection against sun burn on a long-term basis. It is effectively controlled by sunscreens. But UV-B is associated with the risks of ageing, skin cancer (due to DNA damage) and long-term tanning.
  • Hence, one can judiciously choose the time and extent of exposure to sunlight to enjoy the benefits of the sunlight and at the same time not becoming vulnerable to its ill effects.

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