Re:Vitamin D supplementation to prevent acute respiratory tr...
by pdonis on Monday March 02, 2020 @11:21AM
(#22465748)
> Should white skin not reflect sunlight more, and dark skin absorb it more?
"White" and "dark" refer to the skin's effects on visible light. Visible light is different wavelengths from UV light; vitamin D production in the skin depends on UV light. "Dark" skin blocks UV light more than "white" skin does.
"White" and "dark" refer to the skin's effects on visible light. Visible light is different wavelengths from UV light; vitamin D production in the skin depends on UV light. "Dark" skin blocks UV light more than "white" skin does.