Why Are Some Races White, and Others Black, Yellow and Brown?
What you eat determines your color, according to Bergfield, a German investigator. Not necessarily that you yourself could effect any change in color, but your ancestors for thousands of years have unconsciously been influenced by the food they have eaten and the drinks they have drunk.
For instance, the original men were black, says Bergfield. Their chief diet was of vegetables and fruits, he explains, and these same food contains manganates that are not unlike iron. Dark browns and blacks result from this combination. It is a scientific fact that negroes who drink milk and eat meat are never as dark as those who eat vegetables.
Again, Mongols are yellow because they have descended from races that were fruit-eating, and who, making their way into the deepest nooks and widest plains of Asia, developed into shepherds and lived largely on milk. Of course it is now known that milk contains a certain percentage of chlorine, and has a decidedly bleaching effect. In the case of Caucasians, they are said to have become white by adding salt to their foods, which common salt is a strong chloride, and powerful in bleaching the skin.