[Mogollon]

I don't think they're saying that vitamin D effects melanin production.

But that was the point I was making! The degree of pigmentation is determined by the amount of melanin in the skin not the amount of vitamin D that a person ingests. The article is saying that since they switched food sources that may (or may not have) reduced the intake of vitamin D, their skin became lighter in complexion. That does not make scientific sense. Also, there are several farm grown foods that have adequate minimum daily requirements of vitamin D (milk, grains, etc.). I think the article is B.S..

[decimon]

The article is saying that since they switched food sources that may (or may not have) reduced the intake of vitamin D, their skin became lighter in complexion.

Became lighter in complexion because the darker skinned people became weaker. Only the strong survive and it was, according to this, the lighter people to prevail in this environment.

[bert]

.....Also, there are several farm grown foods that have adequate minimum daily requirements of vitamin D......

You need to do some reading. If you did, you would learn that the current daily minimum is pretty much a guess and the additive to milk barely is adequate to prevent rickets in kids and has nothing to do with adult benefits. Also, everything you learned older than the recent past is superseded by the many recent in depth studies.

There is a flu season only because people don’t get enough Vitamin D during winter months. To repeat, the flu season is the period people don’t get enough sun

Here is a good thread with leads onward. Much has been done since these studies

http://www.freerepublic.com/focus/f-chat/1929828/posts

By the way, how do you pronounce Mogollon? Mug e own?