Just "D" Facts about Vitamin D

Benefits of Moderate UV Sunshine Exposure

UV Exposure: The Natural ‘Vitamin D’

Posted by D3forU on January 8, 2011

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New research showing how the body actually metabolizes vitamin D supports the fact that sun exposure to the skin is the only natural and reliable way to process natural and intended levels of “the sunshine vitamin.”

The Vitamin D Council — an independent non-profit organization — cites new research on its web site showing the body’s natural and intended vitamin D level: 50 ng/ml. “Thanks to Bruce Hollis, Robert Heaney, Neil Binkley, and others, we now know the minimal acceptable level. It is 50 ng/ml (125 nmol/L),” the Council, founded by Dr. John Cannell, writes on its web site. Cannell points out that vitamin D researchers Hollis, Heaney and Binkley have shown that the human body does not start storing vitamin D in fat and muscle tissue until vitamin D blood levels reach at least 40 ng/ml for most people. At 50 ng/ml, almost everyone starts storing the sunshine vitmamin.

What does that mean? “That is, at levels below 50 ng/ml (125 nmol/L), the body uses up vitamin D as fast as you can make it, or take it, indicating chronic substrate starvation — not a good thing,” Cannell writes. “25(OH)D levels should be between 50–80 ng/ml (125–200 nmol/L), year-round.”

And who has the highest vitamin D levels: Those who work outdoors. Indoor tanners also have high vitamin D levels: 42-49 ng/ml on average. That’s 90 percent higher than the rest of the population, according to Boston University research.

To visit the Vitamin D Council’s web site click here.

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