. "6 Tolerable Upper Intake Levels: Calcium and Vitamin D." Dietary Reference Intakes for Calcium and Vitamin D. Washington, DC: The National Academies Press, 2011.
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DRI Dietary Reference Intakes Calcium Vitamin D
ULs for Pregnancy and Lactation
Pregnant or Lactating 14 Through 18 Years of Age
Pregnant or Lactating 19 Through 30 Years of Age
Pregnant or Lactating 31 Through 50 Years of Age
UL 4,000 IU (100 μg)/day Vitamin D
The available data do not indicate a basis for deriving a UL for pregnant and lactating women or adolescents that is different from those for their non-pregnant and non-lactating counterparts.
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