Research
Micronutrients & recovery
Vitamin D supplementation is probably linked to a decrease in dental caries in children and a decrease in parathyroid hormone concentrations in patients with chronic kidney disease requiring dialysis.
For children, Vitamin D supplementation may help reduce tooth decay. For patients with chronic kidney disease on dialysis, it may help lower parathyroid hormone levels. These are probable benefits, but they do not apply to the general population.
GoodSupportsMEDIUM confidence
Vitamin D supplementation is probably linked to a decrease in dental caries in children and in parathyroid hormone concentrations in patients with chronic kidney disease requiring dialysis
Why this rating
Based on umbrella review of meta-analyses of RCTs.
Source
Vitamin D and multiple health outcomes: umbrella review of systematic reviews and meta-analyses of observational studies and randomised trials
Evropi Τheodoratou et al. · BMJ · 2014
DOI 10.1136/bmj.g2035
Meta-analysis · 268 studiesCited 974×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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- There is no highly convincing evidence of a clear role of vitamin D for any health outcome, as observational associations often fail to replicate in randomised controlled trials.Strong
- Vitamin D supplementation alone does not significantly increase bone mineral density or reduce the risk of fractures or falls in older people.Good
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