Quote from article above:
The American Heart Association, the American College of Physicians, and the American College of Obstetricians and Gynecologists all agreed that a sufficient number of studies had been done to prove that HRT was unequivocally helpful in helping older women ward off heart disease and osteoporosis. By 2001, 15 million women were taking HRT, including 5 million elderly women.
It is common knowledge that HRT causes cancer, stroke, heart attack, and dementia. Therefore, to say that HRT was/is "helpful" to women is a myth.
Author: Amy Proal is an idiot. That is the only possibility of such a poorly researched article.
Nearly all of what we know about vitamin D has been learned over the past 10 years, and some certain facts show absolutely that most disease is greater the further you go from the equator. That 30ng/ml is not normal, 60 to 90 ng/ml is more like the optimal level. And although D is a hormone and not a vitamin, it boosts immune function, rather than supress it like the article states.
The basic fact is that every cell in the body has receptors for D and that wouldn't be the case if only a small amount was needed.
https://www.youtube.com/watch?v=--NqqB2nhBE