Quote:
Originally Posted by troutman
Blog from Dec 2010:
New Recommendations for Calcium and Vitamin D Intake
http://www.sciencebasedmedicine.org/...amin-d-intake/
A couple of my correspondents have been screening their patients for vitamin D deficiency and they report that at least half fall in the “very low” category <20ng/mL. Doctors are giving large doses (often a weekly 50,000 IU pill for several weeks) to quickly get their patients back into the “normal” range. Then a 2000 IU or even a 5000 IU daily dose can be necessary to keep them at that level. Are they treating a true deficiency? Or are they uselessly trying to move people from one side of a normal bell curve to the other? When half of our patients fall into the “abnormal” category, it bothers me. |
If low vitamin D levels are 20ng/mL, and getting them up to the normal level of 48ng/mL, why exactly is it a problem supplementing with a lot of vitamin D? 50,000IU per day might be a lot, but if someone is deficient, getting them back to normal levels should be a priority. Either way, that article is borderline stupid.
Every single study ever done has shown that you have to literally take 50,000IU of Vitamin D PER DAY, for several months before it becomes a problem. In other words, since Vitamin D usually comes in pills of 1000IU, that would be 50 of those pills per day. That is insane and extremely unlikely that anyone does that.
Quote:
There can be too much of a good thing. Gary Null inadvertently sounded a note of caution when he managed to poison himself with one of his own products. The manufacturer of Null’s Ultimate Power Meal supplement got the math wrong (by a factor of a thousand, no less!) and overloaded the supplement with 2,000,000 IU of vitamin D instead of 2000 IU. Null nearly died. The IOM recommends an upper limit of 4000 IU a day.
[/I]http://www.webmd.com/diet/news/20101...ease-vitamin-d
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Gary Null is a moron. 2,000,000IU per day is insane and stupid, and anyone that eats the diet he did with those moronic power meals deserves to get sick.
Quote:
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The majority of Americans and Canadians are getting sufficient vitamin D and calcium, the new guidelines state. Some adolescent girls aged 9-18 may fall below the daily recommended level of calcium intake, and some elderly people may have an inadequate intake of calcium and vitamin D.
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This is simply not true.
Quote:
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Three-quarters of U.S. teens and adults are deficient in vitamin D, the so-called "sunshine vitamin" whose deficits are increasingly blamed for everything from cancer and heart disease to diabetes, according to new research.
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http://www.scientificamerican.com/ar...-united-states