A new review in The BMJ says calcium pills, vitamin D pills, or both together do not really help older people avoid broken bones or falls.
Falls are a big problem for seniors. About one in three people aged 65 or older falls each year, and many of those falls end in fractures. Broken bones can cause pain, loss of independence, lower quality of life, and sometimes the need for long‑term care.
Earlier studies already questioned whether calcium or vitamin D supplements work. Most research showed no drop in fracture risk from either supplement alone, and results for the two taken together were mixed. The effect of vitamin D on fall risk has also been unclear.
Despite the uncertainty, doctors and health agencies still often recommend these supplements for bone health, and prescriptions have risen sharply.
What the New Study Looked At
Researchers in Canada examined 69 randomized trials that included a total of 153,902 adults. The trials compared calcium pills, vitamin D pills, or both against a placebo or no treatment to see if they cut the chance of falls and fractures.
They rated each trial for quality, bias, and certainty of evidence.
Key Findings
When the team set a standard for what counts as a meaningful benefit, they found almost no reduction in overall fracture risk from calcium (moderate certainty, 11 trials, 9,067 participants), vitamin D (high certainty, 36 trials, 92,045 participants), or the combination (high certainty, 15 trials, 51,126 participants).
The same pattern held for specific fractures like hip breaks and for preventing falls. Most of the evidence was of moderate to high certainty.
Who Might Be Different?
Some parts of the analysis included only a few studies or participants, so the results should be read carefully. They may not apply to people with certain bone diseases or those already on osteoporosis medicines.
Even after looking at age, sex, past fractures, past falls, and usual calcium intake from food, the results stayed the same, which makes the conclusions stronger.
What Might Work Better?
In an accompanying editorial, the researchers say more large, well‑designed trials are needed before changing recommendations for high‑risk groups.
Meanwhile, they argue that money and effort should go toward strategies that already show clear benefits, such as balance training, strength‑building exercise, and personalized fall‑prevention programs that mix exercise, home‑hazard checks, and education based on each person’s risk factors.