Principal Proposed Uses
- Infants birth to age 1 year: 400 IU
- 1-70 years: 600 IU
- 70 years and older: 800 IU
- Pregnant or nursing women: 600 IU
What Is the Scientific Evidence for Vitamin D?
- Infants 0-6 months: 1,000 IU
- Infants 6-12 months: 1,500 IU
- 1-3 years old: 2,500 IU
- 4-8 years old: 3,000 IU
- 9 years and older: 4,000 IU
- Pregnant or nursing women: 4,000 IU
Interactions You Should Know About
- You may need extra vitamin D if you are taking certain drugs, such as:
- If you are taking calcium-channel blockers , do not take high-dose vitamin D (with calcium) except under physician supervision.
- If you are taking thiazide diuretics , do not take calcium and vitamin D supplements unless under a doctor's supervision.
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63 Dawson-Hughes B, Harris SS, Krall EA, et al. Effect of calcium and vitamin D supplementation on bone density in men and women 65 years of age or older. N Engl J Med. 1997;337:670-676.
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- Reviewer: EBSCO CAM Review Board
- Review Date: 07/2012 -
- Update Date: 03/26/2013 -