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> UVB is needed to make Vit D from sunlight Actually, it's UVA. To make appreciable vitamin D you have to be out in the midday sun when there's plenty of UVA,
by kingkongreveng_ 17y ago
> UVB is needed to make Vit D from sunlight
Actually, it's UVA. To make appreciable vitamin D you have to be out in the midday sun when there's plenty of UVA, not after ~2:30pm.
- chaosmachine 17y agoIt's definitely UVB. http://en.wikipedia.org/wiki/Vitamin_D#Production_in_the_skin http://en.wikipedia.org/wiki/Vitamin_D#Production_in_the_ski... http://lpi.oregonstate.edu/infocenter/vitamins/vitaminD/ http://lpi.oregonstate.edu/infocenter/vitamins/vitaminD/ http://www.ncbi.nlm.nih.gov/pubmed/19812604 http://www.ncbi.nlm.nih.gov/pubmed/19812604