Calcium, Vitamin D Don't Prevent Fractures: BMJ Review — SkimNews
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- BMJ systematic review analyzed 69 randomized controlled trials with 153,902 adults and found calcium, vitamin D, or their combination produced little to no meaningful reduction in fractures or falls among older people.
- Evidence certainty was rated high for vitamin D (36 trials, 92,045 participants) and combined supplementation (15 trials, 51,126 participants), and moderate for calcium alone (11 trials, 9,067 participants), with the same null pattern seen for hip fractures specifically.
- Nearly one in three adults aged 65 and older falls each year, and those falls can lead to fractures, chronic pain, loss of independence, reduced quality of life, and in some cases placement in residential care.
- Vitamin D prescriptions — with or without calcium — have risen substantially in recent years, even though prior reviews had already failed to consistently demonstrate fracture-prevention benefits, a gap the new authors flag between practice and evidence.
- Researchers, including lead author Olivier Massé and colleagues in Canada, argue that clinicians, guideline panels, and regulatory agencies should "re-evaluate their general recommendations" for routine supplementation in light of the findings.
- Linked editorial authors recommend redirecting attention and funding toward balance training, resistance exercise, multi-component fall-prevention programs, hazard assessment, and individually tailored education.
- People with specific bone disorders or those receiving medication for osteoporosis may have different needs and "should not assume the findings apply directly to them," the researchers cautioned.
Why it matters: Built on high-certainty evidence across more than 150,000 participants, the review directly contradicts a clinical norm — vitamin D prescriptions have continued rising despite prior inconclusive findings — and gives guideline panels and regulators a substantive basis to redirect spending and patient counseling toward exercise-based fall prevention, which the linked editorial identifies as having stronger evidence.
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