According to dermatologist Christopher Burnett, M.D. of the Henry Ford Health System, the Institute of Medicine’s 2010 recommendations for the safe levels of Vitamin D intake were actually intended to be on the conservative side. While the risks for excessive vitamin D intake tend to come mainly with acute doses well above the currently recommended range, the exact risks, aside from hypercalcemia, are still unknown.

Therefore, until further studies are done as to the potential downside of elevated vitamin D levels, the IOM has decided to err on the side of caution.

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IOM recommendations for vitamin D intake play it safe, physician says