Millions take calcium and vitamin D to protect their bones. The biggest review yet suggests the daily pills may not prevent the falls they fear most

It has been routine for many older individuals to take calcium or vitamin D supplements on a daily basis in order to help maintain healthy bones. However, according to a new study, such supplements do not have any clinically significant effects in preventing the feared outcomes – falls and bone fractures.

A total of 69 randomised controlled trials that involved 153,902 adults were reviewed.

The study results showed that calcium, vitamin D, and the combination of both did not show any clinically significant effect in preventing fractures or falls in adults. These results were published in The BMJ in May 2026.


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This does not imply that calcium and vitamin D are unnecessary substances. In fact, calcium is required for maintaining normal bone structure while vitamin D facilitates calcium absorption in the body.

The question in this case is whether the routine use of these nutrients in supplement form has some clinically significant effects in preventing bone fractures and falls in adults.

The answer for most adults participating in the study is no.

A huge pool of evidence produced a surprisingly small benefit

The researchers collected data from trials comparing calcium, vitamin D, or both with placebo and non-supplementation.

Most of the study population resided in the community instead of being in residential care. In addition, 73% of the participants were low-risk for bone fractures and falls.

This information is crucial as the results can be applied to the same populations as those used in the studies and not all osteoporosis patients or those with poor nutrition.

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When it came to calcium, researchers analysed data from 11 trials that included 9,067 participants. There were only minimal effects on reducing the risk of fractures.

For vitamin D, 36 trials with 92,045 participants were analysed. High-certainty evidence showed minimal effects on reducing fractures.

Both supplements were combined in 15 trials that included 51,126 participants. Similarly, the researchers found that the combined effects were minimal.

The same results were seen when the analysis was done regarding falls, hip fractures, and other kinds of bone fractures.

This similarity was vital. In addition, researchers also did further analysis to test the impact of different variables, including age, sex, history of fracture or falls, and diet calcium intake. The results were similar.

The finding does not mean everyone should stop taking supplements

The headline finding can easily be misunderstood.

The study does not establish that calcium and vitamin D have no role in human health. Nor does it mean that every person taking one of these supplements should stop.

The researchers were looking specifically at whether supplementation prevents falls and fractures. Their conclusion was that routine supplementation offered little to no clinically meaningful protection in the populations covered by the evidence.

There are also important gaps.

The review included relatively little evidence for people at particularly high risk of fractures or those requiring residential care.

It also excluded people receiving osteoporosis medications, meaning its findings should not automatically be applied to patients taking drugs specifically prescribed to treat osteoporosis.

People with documented nutritional deficiencies, certain bone conditions or other medical reasons for supplementation may have different requirements.

That distinction is particularly important because supplements can be used for several reasons. Preventing fractures in otherwise healthy adults is not the same clinical question as correcting a deficiency or supporting treatment for an established bone disease.

For someone already taking calcium or vitamin D on medical advice, the review therefore does not provide a reason to make a treatment change without discussing it with a healthcare professional.

Why falls matter as much as the bones themselves

A broken bone is often the end result of a much earlier event: a person loses balance, stumbles or falls.

That makes fall prevention a different target from simply improving bone health.

The BMJ review found little to no meaningful effect from calcium, vitamin D or their combination on fall outcomes as well as fractures.

This has shifted attention toward interventions that address some of the physical factors that make falls more likely.

Exercise is one example. Balance-focused activities can help people work on stability, while resistance training can improve muscle strength and physical function.

Programs designed around an individual's risk can also include measures such as identifying hazards in the home and providing education about fall prevention.

The evidence does not mean exercise is a replacement for medical treatment where osteoporosis or another bone condition is present. Instead, it highlights that preventing a fracture may require attention to more than bone mineral alone.

A strong skeleton can still be injured in a fall. Reducing the likelihood of falling is therefore an important part of the wider picture.

The authors of the review and commentators have called for more research, particularly involving people at higher risk, because the evidence in those groups remains less complete.

The next question is who actually benefits from supplementation

The new research contradicts the theory of taking calcium or vitamin D supplementation to protect individuals from fractures and falls.

The study's sample population consists mostly of community-dwelling adults who are at low risk.

Therefore, there is still uncertainty regarding people with osteoporosis, severe deficiency, institutionalised elderly, and others with different medical conditions than those predominantly involved in the trials.

It should also be mentioned that there is a continuing controversy regarding the interpretation of results.

Some of the responses published by The BMJ argue that the results cannot be applied to nutritionally deficient or high-risk individuals, while some emphasise the importance of the results for people without such characteristics.

For an average elderly person, the conclusion from this review is quite clear: calcium, vitamin D, and their combination do not seem to give any additional benefit in terms of protection from fractures and falls.

This means that the discussion of healthy ageing goes beyond the pills.

Bone health is influenced by nutrition, physical activities, diseases, and many other personal features. Moreover, if the aim is to avoid a fracture, then maybe the prevention of falls is just as important as supplement intake.

FAQ

1. Are calcium and/or vitamin D supplements associated with fracture prevention?

The results of this review do not reveal any reduction in fractures due to the use of calcium, vitamin D or their combination in any of the studied population groups. The review included 69 randomised trials with a total number of participants equal to 153,902.

2. Is vitamin D capable of preventing falls among the elderly?

According to the data from this review, vitamin D was not associated with a clinically significant effect on falls. The majority of participants represented the elderly community-based population group; however, not all of them were prone to falling.

3. Should I discontinue taking my calcium and vitamin D supplements?

No, not necessarily based on this research alone. There could be different indications for the use of these supplements, which means that the conclusions of this review are not relevant to everyone, especially in cases of deficiencies. Consult your doctor.

4. What can be done to prevent falls among the elderly?

Physiological prevention of falls among the elderly might include proper exercise aimed at improving their balance and strength. There can be different fall prevention programs involving assessment of potential hazards.