Calcium and vitamin D supplements provide little to no clinically meaningful benefit in preventing fractures or falls in most older adults.
This finding challenges widespread public health recommendations that encourage millions of seniors to take these supplements to maintain bone health and prevent injury.
Researchers led by Professor Andrew Grey at the University of Oxford’s Clinical Trial Service Unit and Epidemiological Studies Unit conducted the systematic review and meta-analysis. The study, published in The BMJ in May 2026, analyzed 69 randomized controlled trials [2] involving approximately 154,000 older adults [1].
The analysis concluded that calcium supplements, vitamin D supplements, or a combination of both had little to no effect on the primary outcome of any fracture [3]. Specifically, the supplements showed no benefit for almost one-third of people aged 65 and older [4].
"Our findings suggest that routine supplementation with calcium and vitamin D is unlikely to provide clinically meaningful benefits for most older adults," Grey said.
The research team aimed to assess the efficacy of these routine supplements given the prevalence of official health advice. The results suggest that the perceived protection offered by these pills may not materialize for a significant portion of the aging population, a finding that could prompt a shift in medical guidelines.
Some observers have suggested that government health advice should be urgently re-evaluated in light of these findings, particularly in the United Kingdom where millions of citizens follow these supplementation protocols.
“"Our findings suggest that routine supplementation with calcium and vitamin D is unlikely to provide clinically meaningful benefits for most older adults."”
This review suggests that the standard medical approach to bone health in older adults may be over-reliant on supplementation. If routine calcium and vitamin D intake does not significantly reduce fracture rates, healthcare providers may need to pivot toward other preventative measures, such as physical therapy or different pharmaceutical interventions, to address osteoporosis and fall risks in the elderly.
