Vitamin D for Fall Prevention Elderly
Verdict: Counter-Evidence
Across 5 PubMed studies, the evidence for Vitamin D in Fall Prevention Elderly grades Tier D — counter-evidence. High-quality evidence indicates it is not effective (or is harmful) for this use.
D 🔴 D Counter-Evidence Counter-Evidence
Why this grade7-layer evidence engine
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Scoring transparency
All scores computed by a 7-layer evidence engine — fully auditableRaw score 0.45
D
C
B
A
S
← counter-evidence / ineffectiveeffective / strong evidence →
Final grade
D · Counter-Evidence
Confidence
80%
Highly consistent evidence
Evidence level
E2
Multiple high-quality MAs (≥2 independent, consistent)
▸View the full decision path (audit trail)
- compute_raw_score — 加權公式: L2×0.30 + L3×0.25 + L5×0.25 + L11×0.10 + L1×0.10 = 0.45
- tier_from_score — 依分數區間映射至 tier letter
- apply_hec_rules — 無高階證據可裁決
- tier_strict_requirement_check — Tier 條件達標，未降階
- detect_disputes — 偵測到 1 個 hard + 0 個 soft dispute
- decide_status — 依 tier + dispute 結果決定 status
PubMed studies (5)L2 · primary research & systematic reviews
Efficacy of Vitamin D Supplementation on the Risk of Falls Among Community-Dwelling Older Adults: A Systematic Review and Meta-Analysis
— See PubMed for details
View on PubMed Effect of vitamin D, calcium, or combined supplementation on fall prevention: a systematic review and updated network meta-analysis
— See PubMed for details
View on PubMed Association Between Vitamin D Supplementation and Fall Prevention
— See PubMed for details
View on PubMed The effect of vitamin D and calcium supplementation on falls in older adults: A systematic review and meta-analysis
— See PubMed for details
View on PubMed Vitamin D treatment for the prevention of falls in older adults: systematic review and meta-analysis
— See PubMed for details
View on PubMed Regulatory & authoritative positionsL4/L5 · FDA / EMA / NIH ODS / Cochrane / Mayo …
L4a US FDA
Supportive
Vitamin D-3 is recognized as GRAS source↗
L4b EU EFSA
Supportive
cause and effect relationship has been established source↗
L4c UK NHS
Supportive
everyone should consider taking a daily vitamin D supplement during the autumn and winter source↗
L4d TW TFDA / 衛福部
Supportive
每日維生素D攝取量需達10微克 source↗
L4e WHO
Cautious
not recommended for all pregnant women source↗
L5a NIH Office of Dietary Supplements
Supportive
Vitamin D is a fat-soluble vitamin source↗
L5b Mayo Clinic
Against
Vitamin D supplements no longer are recommended to prevent falls for people 65 years or older, according to new guidelines by the U.S. Preventative Services Task Force (USPSTF). Although vitamin D and calcium can benefit bone health, especially in those who do not get an adequate amount of calcium in their diet or have low levels of vitamin D, neither has been clearly shown to reduce falls. In … source↗
L5c Cleveland Clinic
Cautious
The task force also recommends against vitamin D supplementation for fall prevention in community-dwelling adults age 65 or older who are not known to have osteoporosis or vitamin D deficiency. source↗
L5d Harvard Health
Against
Taking vitamin D did not prevent falls in older adults, so it is recommending against taking a supplement just for that purpose. However, vitamin D is important if you have osteoporosis or vitamin D deficiency. source↗
L5e Specialty Society (condition-mapped)
Supportive
The American Geriatrics Society recommends 800 IU/day in older adults with a proven vitamin D deficiency (grade A) and consideration of supplementation in those with suspected vitamin D deficiency or at increased risk for falls (grade B). A serum 25-hydroxyvitamin D concentration of 30 ng/mL (75 nmol/L) should be a minimum goal to achieve in older adults, particularly in frail adults, who are a… source↗