Could this be why evidence suggests that redheads synthesize Vitamin D more efficiently? Red hair is more prevalent at higher latitudes (I think).
Can redheads produce Vitamin D in these darker conditions while others cannot do so effectively?
https://www.sciencealert.com/evolution-favored-genes-linked-...
Pale skin in general helps synthesize Vitamin D. The less melanin you have the more you absorb, this is why lighter skin happens at northern latitudes. Darker skinned people are more likely to need to supplement it.
Darker skinned people in northern latitudes. Made worse for vegetarians like Ramanujan in England.
"vegetarians" relevance?
Strict Vegetarians don’t eat eggs. No D vitamin fortified milk in his days. Many vegetarians don’t eat mushrooms, the only plant based source of vitamin D.
Animal products are the primary natural dietary source of Vitamin D3
Makes sense, thanks for the reply and clarification!
That sounds like a hypothesis that brown folks migrated north and evolved to be light as opposed to "light skinned peopled moved to the north". The latter is the historically accurate situation.