“Vitamin D” is in quotes here and above because it is not a vitamin at all — in its active form it is the most powerful steroid hormone in our bodies. Though it is surprisingly crucial to both our developmental and ongoing health and well being (as the many clinical studies provided below demonstrate), it is present in it's so-called “active form” in concentrations of only 20 to 50 picograms per liter of human blood (a “picogram” is a trillionth of a gram!)
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GRC | Vitamin D Research what's in store. And once you get back down to the clinical studies details you'll have a much better sense for why you're there and why they probably matter.And thanks for checking this out! I hope you'll be glad you did.
<span>“Vitamin D” is in quotes here and above because it is not a vitamin at all — in its active form it is the most powerful steroid hormone in our bodies. Though it is surprisingly crucial to both our developmental and ongoing health and well being (as the many clinical studies provided below demonstrate), it is present in it's so-called “active form” in concentrations of only 20 to 50 picograms per liter of human blood (a “picogram” is a trillionth of a gram!)
So just a very tiny bit of this stuff goes a long way!
When human skin is exposed to sufficiently powerful ultraviolet (UV) radiation from sunlight, a form of cholesterol co Summary
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