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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.

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NocturnalMorning@lemmy.world ⁨7⁩ ⁨months⁩ ago
Sure you can, but there’s also winter nonths where you can’t really go outside.

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- bleistift2@feddit.de ⁨7⁩ ⁨months⁩ 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.
  
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  I thought less time was required.
  
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  - FlyingSquid@lemmy.world ⁨7⁩ ⁨months⁩ 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?
    
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