Vitamin D supplementation to prevent acute respiratory tract infections (2017)

Re:Vitamin D supplementation to prevent acute respiratory tr... by SketchySeaBeast on Monday March 02, 2020 @11:51AM (#22466100)

The first two articles I get from that search looks at vitamin d and the older population, and the third[1] suggests that even in sub-arctic elevations "Adequate levels were found in 79.2%, more often in women (82.7%) than in men (75.6%). Only 0.7% of the population were vitamin D3–deficient but 23.1% of men and 17.1% of women had insufficient levels." That doesn't seem too damning.

At the end of the day I don't know enough, so I'm not making the claim about Vitamin D quantities, but isn't the evidence that there was at least some form of adaptation evident based upon skin tone alone?

https://www.tandfonline.com/doi/full/10.3402/ijch.v74.27963

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Re:Vitamin D supplementation to prevent acute respiratory tr... by abainbridge on Monday March 02, 2020 @01:04PM (#22466945)

I already agreed there was adaption. I just can't see how there can have been adaption for an _indoor_ life at northern latitudes. That's doubly hard, compared to a traditional life in northern latitudes, right? Although, to argue against myself, I guess if you go far enough north, people won't be getting any sunlight in the winter even if they are outdoors all the time. People there must have adapted to that. I guess by eating things with lots of vitamin D.

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Re:Vitamin D supplementation to prevent acute respiratory tr... by nitrogen on Monday March 02, 2020 @12:31PM (#22466557)

I wonder, have any northern populations developed an instinctive winter hibernation adaptation?

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