Multiple choice

Which vitamin is produced by sunlight?

  1. A

  2. B

  3. D

  4. C

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Vitamin D is uniquely synthesized in human skin when exposed to ultraviolet B (UVB) radiation from sunlight. This is why it's often called the sunshine vitamin. Vitamins A, B, and C must be obtained from dietary sources as the body cannot produce them from sunlight.