Kindly explain.
"'You have the cause and effect reversed.'
Kindly explain.'
There is a relationship but not exactly that lack of D3 caused white people to be white. More likely that dark skinned peoples developed the darker pigmentation to protect against skin cancer and the overproduction of D-3. If one assumes that man arose from apes, the majority of an apes skin is not pigmented. Lighter skinned people do usually require less supplemental D3 than do darker skinned people receiving the same exposure to the sun. So there is a relationship but not clearly cause and effect.