What are the recommended dietary allowances (RDAs) for vitamin D (cholecalciferol)?

Updated: Jun 01, 2020
  • Author: Mark Rosenbloom, MD, MBA; Chief Editor: Michael A Miller, MD  more...
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Vitamin D (ie, cholecalciferol) is present in most dairy products, egg yolks, liver, and fish. It increases serum calcium levels by facilitating calcium absorption and mobilizing calcium from bone. Supplements usually are 400 IU per tablet. The RDAs for vitamin D are as follows [10] :

  • Age 0-12 months (adequate intake) - 10 mcg (400 IU)

  • Age 1-70 years (including lactation and pregnancy) - 15 mcg (600 IU)

  • Age >70 years - 20 mcg (800 IU)

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