Is the lactose intolerance a measurement of whiteness? Does it finally prove that South America has no white blood?
That area also has a high incidence of people of R1c haplogroup descent.
Likely that a euro population moved down there and intermixed with the locals.
Regardless, these numbers do not seem accurate.
Three of my closest my friends are lactose intolerant.
Their muh heritage:
Italian (this one makes sense though)
My jaw dropped when they told me they were lactose intolerant.