Research
Hormonal
Vitamin D supplementation (700–1000 IU/day) reduces the risk of falls by 19-23% in adults, but only when serum 25(OH)D levels reach at least 24 ng/mL.
Take 700-1000 IU of Vitamin D daily to reduce fall risk. This works by improving muscle strength and balance, but only if your blood levels reach at least 24 ng/mL. If you are taking lower doses, you may not get this specific benefit.
GoodConditionalHIGH confidence
A meta-analysis of 8 randomized controlled trials (n = 2426) showed that supplemental vitamin D of 700–1000 IU/day or a serum 25(OH)D of ≥24 ng/mL reduced the risk of falls by 19% and 23% respectively. No benefit was observed with lower supplemental doses or lower serum 25(OH)D concentrations [126].
Why this rating
Based on meta-analysis of RCTs, though mechanism of VDR in muscle is controversial.
Source
Vitamin D — Effects on Skeletal and Extraskeletal Health and the Need for Supplementation
Matthias G. Wacker et al. · Nutrients · 2013
DOI 10.3390/nu5010111
narrative_reviewCited 731×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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