Vitamin D absorption begins to decrease the darker your skin becomes. Blacks can be deficient…. especially in Northern climates.
But the whitening of skin tone as migration went away from the equator was to better produce Vitamin D
Vitamin D absorption begins to decrease the darker your skin becomes. Blacks can be deficient…. especially in Northern climates.
But the whitening of skin tone as migration went away from the equator was to better produce Vitamin D