High-Dose Vitamin D Didn't Prevent Fractures in Older Finns With Healthy Levels
Graded Strong — placebo-controlled randomized trial in 2,495 older adults over 5 years, with fractures drawn from national registers, though most participants were already vitamin D-sufficient.
- Design
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- Participants
- 2,495
- Duration
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- Funding
- Several authors report funding from foundations; one reports travel…
This study suggests extra vitamin D may not protect bones if your levels are already fine.
Older adults in Finland took either 1600 IU, 3200 IU, or a placebo of vitamin D3 daily for five years. Neither dose lowered the risk of broken bones. Most people in the study already had good vitamin D levels to begin with, which may explain the result. The lower dose group actually had slightly more fractures, though the researchers found no clear reason for it.
Conflict of Interest Disclosure: Several authors report funding from foundations; one reports travel reimbursement from Abiogen Pharma and another grants from Mars Edge.
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.