How do our bodies convert sunlight into actual vitamins?

Question

Is this an exaggeration or can I really become ‘healthier’ by standing outside in the sun??

In: 1

Answer 1

Vitamin D is most likely what you are talking about, which is actually not a classic vitamin at all. Its a so called secosteroid.
Our skin is able to Generate vitamin D3 from UV-B rays. In the epidermic layer of our skin is most of something called “7-Dehydrocholesterol” stored, which gets transformed to Vitamin D3 when UV-B rays hit us.

Edit: Typo