Widespread Vitamin D deficiency has been known about for a decade or two, but I think the American public is only just recently starting to pick up on the resea

Widespread Vitamin D deficiency has been known about for a decade or two, but I think the American public is only just recently starting to pick up on the research the past few years. I read about this a couple years ago and asked my doctor for a blood test, and it turns out I'm severely deficient. For what it's worth, I'm Hispanic, and anecdotally, after starting to take supplements I've actually felt better emotionally. It's probably safe to assume that our not-too-distant ancestors spent a lot more time outside, probably with less clothes, and more skin exposed to the sun.