You are assuming that in a sunny country less people have vitamin D deficiency. Why would that hold true?
Yes, vitamin D is "made" by exposing skin to sun. But what about those people who have some kind of metabolic problem and are thus not making vit-D as much even when exposed to sun?
And how about a country, like Israel, where it is SO sunny and hot outside that most people are hiding from it because they are afraid of skin cancer and such?
Yes, vitamin D is "made" by exposing skin to sun. But what about those people who have some kind of metabolic problem and are thus not making vit-D as much even when exposed to sun?
And how about a country, like Israel, where it is SO sunny and hot outside that most people are hiding from it because they are afraid of skin cancer and such?