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Subject:The Power of Vitamin D-- anyone familiar?
Time:02:48 am
I just finished the book The Power of Vitamin D, by Dr. Sarfraz Zaidi. I found it to be an interesting read, but I'm not entirely certain what to think of it-- I'm having trouble finding balanced opinions of his work.

His arguments are compelling. Most people are significantly deficient in vitamin D, which is something that I've heard from many sources (including my own physician.) Vitamin D is a hormone that is vital to quite a few metabolic processes, and deficiency can have some fairly nasty repercussions. I'm not a biochemist, but his arguments feel relatively sound to me. It's consistent with other material that I've read about the topic.

On the other hand, his book has more than a whiff of quackery about it. Whenever I see one thing promoted as the miracle cure for a variety of ailments, I get suspicious. When the author says that (some set of people) don't want you to know about this because (whatever reason, usually because it cuts into their profits), I raise a very skeptical eyebrow. When the author has his own line of products to sell you, complete with his smiling mug on the labels, I pretty much call bullshit on the whole thing. Dr. Zaidi scores a bullshit bingo here.

Even with all of the red flags, his book feels to me like it's probably more true than false.

Anyone have information on this?


Also, I really wish it was possible to just waltz into a lab and order your own bloodwork.
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backtobaseball
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Time:2012-03-07 12:59 pm (UTC)
For a totally non-quack perspective on Vitamin D, try _The Vitamin D Solution: A 3-Step Strategy to Cure Our Most Common Health Problems_ by Dr. Michael F. Holick, PhD, MD, who discovered the active form of vitamin D 40 years ago, and has continued to research vitamin D ever since.

The subtitle of Dr. Holick's book suggests some consonance with what you report from Dr. Zaidi.

Dr. Holick highly recommend sunlight as a source of vitamin D, because, in part, research at his lab has identified several additional beneficial substances that are formed by exposure to sunlight.

If you do manage to find a way to monitor your vitamin D level, you should target at least 50ng/ml. That's the level at which osteoporosis pretty much never occurs, as can be seen, for example, in a chart in the infamous Institute of Medicine (IOM) report of 2010.

The IOM recommended supplementing 200 IU/day, which is totally wrong-headed since vitamin D requirements vary highly across individuals -- those with sufficient sunlight require none, while some require much more -- and even for an individual, it varies by season. Thanks to ongoing monitoring, I have found that I need 3000 IU/day during the winter, but zero (0) during the summer.

One important thing about vitamin D supplementation: some sources are unreliable. See for example the first comment to http://emergentfool.com/2010/11/13/sunlight-vs-vitamin-d/
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[icon] The Power of Vitamin D-- anyone familiar? - Patti — LiveJournal
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