Resolving the Vitamin D-Bate
Why the current vitamin D recommendations may be too low, other expert recommendations may be too high, and 2000 international units a day may be just right.
All Videos for Vitamin D Supplements
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How the Institute of Medicine Arrived at their Vitamin D Recommendation
The latest revision of the official vitamin D recommendations was based on the body’s reaction to protect bone health—but what about the other three dozen affected organs?
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The Difficulty of Arriving at a Vitamin D Recommendation
People respond differently to the same level of vitamin D supplementation, making it difficult to formulate one-size-fits-all guidelines.
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Vitamin D Supplements May Be Necessary
To reach the circulating (25-hydroxy) vitamin D levels associated with the lowest overall mortality, one may need to take supplements, given data suggesting suboptimal production from sun—even under optimal circumstances.
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Vitamin D and Mortality May Be a U-Shaped Curve
Vitamin D deficiency may shorten one’s lifespan, but getting too much vitamin D may also adversely affect longevity.
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Is Vitamin D the New Vitamin E?
The Institute of Medicine’s conservative position on vitamin D is understandable, given the history of hyped vitamin supplements (vitamin A, beta carotene, folic acid, vitamin C, vitamin E) that turned out worthless—or worse.
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Evolutionary Argument for Optimal Vitamin D Level
Should the vitamin D levels found in lifeguards be considered the norm for our species, given the fact that we evolved running around naked all day in equatorial Africa?
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Vitamin D Recommendations Changed
The Institute of Medicine tripled their official vitamin D recommendation, based on target blood levels that indicate a large percentage of the U.S. population is deficient.
