At what dose is vitamin D toxic?

Updated: Jun 01, 2020
  • Author: Mark Rosenbloom, MD, MBA; Chief Editor: Michael A Miller, MD  more...
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The acute toxic dose for vitamin D has not been established. The chronic toxic dose is more than 50,000 IU/day in adults. In infants younger than 6 months, 1,000 IU/day may be considered unsafe. However, a wide variance in potential toxicity exists for vitamin D.

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