Author: Amandev

Why Are White People So Colorful?   [Copy link] 中文

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Post time 2017-9-5 00:36:00 |Display all floors
Jaaja Post time: 2016-11-21 23:05
White skin of northern Europeans comes from biological selection, not so much sexual selection. Quot ...

Vitamin D is added to milk, bro.  

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Post time 2017-9-5 22:03:47 |Display all floors
Imakandi Post time: 2017-9-5 00:36
Vitamin D is added to milk, bro.

Yeah and milk and eggs come from store. No, really they come from cows and hens.

Vitamin D is added to milk in areas where human body cannot produce it enough naturally, and in other areas where it is deemed more vital than what the bodies can produce naturally.

UV radiation from sun is necessary to produce it naturally, so D supplements in milk are generally used in northern and southern latitudes where UV is more limited than closer to equator.

In the ancient times when the early human populations were migrating, vitamin D was not added to milk, and in fact the existence of vitamin D or any vitamin for that matter was not known to humans. They were hunter-gatherers who didn't go to high school.

Humans wandered north and surprisingly the freaks of nature with whiter skin and lactose tolerance survived better than the black skinned mainstream folks - because their bodies could better produce more vitamin D under limited UV, and they could continue to drink milk as adults to get vitamin D from milk - which contains some of it naturally.

Lactose intolerance of which some people in north suffer, is actually the normal and original operating mode of human body. Lactose tolerance is a lucky genetic abnormality.

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