The term "vitamin" is usually applied to something we cannot create and have to get out of our food, so "vitamin D" is actually a bit of a misnomer. As someone else replied (and you can look it up on Wikipedia ), our skin synthesizes vitamin D as ultraviolet light converts prohormone substances (derived from cholesterol) into various forms that are shuttled to other parts of the body that Wikipedia will happily tell you about (such as the kidneys.) It is LIKE photosynthesis, although that term is usually applied to light-dependent carbohydrate production. So I'd rather call it "photo-metabolism" or "photo-conversion".Sunlight does not contain any vitamin D -- or anything else -- right?
Is it like some kind of photosynthesis?
Sunlight does not contain any vitamin D -- or anything else -- right?
Is it like some kind of photosynthesis?