BMJ meta-analysis of 154,000 people: Calcium and vitamin D supplements provide little bone protection for most older people
For decades, calcium and Vitamin D Nutritional supplements have been among the most widely recommended interventions for bone health in older adults. The largest systematic review of the evidence ever conducted suggests that most people who take them do not get meaningful protection from fractures or falls.
Meta-analysis Published in BMJ On June 15, 2026examining 69 randomized controlled trials including 153,902 adults, found that calcium alone, vitamin D alone, or both combined provided little or no clinically meaningful reduction in fracture risk or fall risk for most older adults who live independently.
What the BMJ analysis found
The Canadian research team, led by Olivier Massey and colleagues, analyzed 69 randomized controlled trials and used previously agreed upon clinically meaningful thresholds – not just statistical significance – as the primary criterion for benefit. This methodological choice makes the conclusions more directly applicable to patient care than most previous reviews.
BMJ Group press release Summarizes the results:
| Appendix and result | Level of evidence | find |
| Calcium alone — no fraction | Moderate certainty (11 trials; 9067 participants) | Little to no effect |
| Vitamin D alone — no break | High certainty (36 trials; 92,045 participants) | Little to no effect |
| Calcium + Vitamin D — any fraction | High certainty (15 trials; 51,126 participants) | Little or no clinically meaningful effect |
| Any supplement – hip fracture specifically | High or moderate degree of certainty | Little to no effect |
| Any accessory — located | High or moderate degree of certainty | Little to no effect |
The combination of calcium and vitamin D showed a slight statistical trend toward reducing fractions that did not reach the previously agreed upon threshold for clinically meaningful benefit.
Who does this apply to – and does not apply to
This applies to older adults living in the community without diagnosed osteoporosis, confirmed vitamin D deficiency, or malabsorption conditions. Specific populations for which supplementation may retain a clinical rationale include: adults with confirmed vitamin D deficiency (serum 25-OH-D <20 ng/mL); People diagnosed with osteoporosis on orthopedic drug therapy; Those with malabsorption conditions. and individuals confined to home with very limited exposure to sunlight.
The message is not like that “Get rid of your vitamins.” It is: For ordinary healthy older adults who take these things primarily as a fracture prevention strategy, the evidence no longer strongly supports this reasoning.
True bone protection requires a different strategy: fall prevention (vision screenings, medication review, home hazard elimination), weight-bearing and resistance exercise, adequate protein intake, and pharmacological osteoporosis treatment – when clinically indicated.
The US Preventive Services Task Force (USPSTF) issued a draft recommendation in December 2024 against routine supplementation for the prevention of falls and fractures in adults living in the community—a reversal of its 2018 recommendation. This draft has not yet been finalized, leaving a gap between the evidence and formal guidance that doctors and patients must address.
Frequently asked questions
What did the BMJ study find for calcium and vitamin D?
69 randomized trials, 153,902 adults, published on June 15, 2026 in BMJ: Calcium alone, vitamin D alone, or both combined provided no clinically meaningful reduction in the risk of fracture or falls for most independently living older adults.
Should I stop taking calcium and vitamin D?
Talk to your doctor first. If you are taking it for a diagnosis of osteoporosis, confirmed deficiency, or malabsorption, this clinical rationale may still apply. If the primary goal is universal prevention of fractures, the evidence no longer strongly supports this as a primary justification.
What actually works to prevent fractures?
Weight-bearing and resistance exercises, fall prevention (home hazard review, vision testing, medication review), adequate protein, and – if diagnosed with osteoporosis – drug therapy (bisphosphonates, denosumab).
Was this the largest study ever on this question?
Yes. 69 randomized controlled trials and 153,902 adult participants make this the largest systematic review on this topic ever.
What is the actual role of vitamin D in health?
Vitamin D has roles beyond bone health, including immune function, muscle function, and cardiovascular health. Correction of confirmed deficiency is still clinically relevant. This study specifically looked at fracture and fall prevention, not the broader health roles of vitamin D.
