Arch Intern Med
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Review Meta Analysis
Prevention of nonvertebral fractures with oral vitamin D and dose dependency: a meta-analysis of randomized controlled trials.
Antifracture efficacy with supplemental vitamin D has been questioned by recent trials. ⋯ Nonvertebral fracture prevention with vitamin D is dose dependent, and a higher dose should reduce fractures by at least 20% for individuals aged 65 years or older.