Comment

Comment on Take that to the privacy of your own home.

If only humans could make their own vitamin D. Oh, wait

The major natural source of vitamin D is synthesis of cholecalciferol in the lower layers of the epidermis of the skin, through a photochemical reaction of UVB light, from the sun exposure (specifically UVB radiation) or UVB lamps.

source

Sort:hotnew top

NocturnalMorning@lemmy.world ⁨1⁩ ⁨year⁩ ago
Sure you can, but there’s also winter nonths where you can’t really go outside.

source
- bleistift2@feddit.de ⁨1⁩ ⁨year⁩ ago
  Thanks for pointing that out.
  
  In the winter, only 10 percent of the body is exposed, and nearly 2 hours of sun exposure at noon is needed to produce a sufficient amount of vitamin D.
  
  Source
  
  I thought less time was required.
  
  source
  - FlyingSquid@lemmy.world ⁨1⁩ ⁨year⁩ ago
    So I’m supposed to be outside for two hours in -20 degree weather to get my Vitamin D just so I can survive?
    
    source