About one in four adults aged 65 and over falls each year, and a first fall roughly doubles the odds of another. So when early research suggested something as simple and cheap as vitamin D might reduce falls, it got a lot of attention — including in the first draft of this article.
The evidence has since moved, and this article has been rewritten to reflect that. If you have read older articles recommending vitamin D to prevent falls — including on this site before 2026 — the current US guidance disagrees with them.
What the early research suggested
A small study from Wake Forest Baptist Medical Center followed 68 homebound older adults over five months. Half received monthly high-dose vitamin D; half received a placebo. Participants who reached sufficient blood vitamin D levels reported fewer falls. The researchers themselves were careful to say that a study of 68 people needed replication in a much larger group before anyone acted on it.
What happened when it was tested properly
It was replicated, at scale, and it did not hold up. The U.S. Preventive Services Task Force recommends against vitamin D supplementation to prevent falls in community-dwelling adults aged 65 and older — a position it first issued in 2018 and carried into its 2024 update on falls prevention. Its 2024 draft recommendation on vitamin D and calcium likewise concluded, with moderate certainty, that supplementation has no net benefit for primary fracture prevention in community-dwelling adults over 60.
Some trials of very high intermittent doses found more falls, not fewer. “Natural” and “harmless” are not the same thing, and more of a vitamin is not reliably better.
What is actually recommended for falls
The same USPSTF review that rejected vitamin D did recommend exercise interventions for community-dwelling adults 65 and older at increased risk of falls, and suggested a selective, individualized approach to multifactorial interventions. In other words: the thing that works is movement, strength and balance work — not a supplement.
None of this means vitamin D is useless. It has established roles in bone and muscle function, and people with a diagnosed deficiency are treated for it. The point is narrower: taking it specifically to avoid falling is not supported.
What this means for day-to-day care. The highest-value things you can do about falls are physical and environmental, not pharmaceutical — clear walking routes, remove loose rugs and cords, light the path to the bathroom, keep frequently used items within reach, and make sure footwear actually fits. If the person you care for is on multiple medications, dizziness on standing is worth reporting to their clinician; it is a common and fixable fall risk.
Sources
- U.S. Preventive Services Task Force — Falls prevention in community-dwelling older adults: interventions (2024)
- U.S. Preventive Services Task Force — Vitamin D, calcium, or combined supplementation for primary prevention of falls and fractures (draft, December 2024)
- CDC — Older adult fall data
- Wake Forest Baptist Medical Center — Vitamin D supplements could help reduce falls in homebound elderly (2015)
This article is general information, not medical advice. It describes published research; it is not a recommendation for you or the person you care for. Never start, stop or change a prescribed medication because of something you read here — talk to the prescribing clinician first. Communicare Elite provides non-medical personal care through Missouri’s Consumer Directed Services program and does not provide medical advice or treatment.