Association of vegetable and fruit intake with risk of dementia: 3 prospective studies and meta-analysis of cohort studies.
Liyan Huang, Gulisiya Hailili, Mengjia Zhao et al.
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In 30 seconds
This meta-analysis examined the relationship between vegetable and fruit intake and dementia risk across three prospective cohorts, involving 18,339 participants aged ≥45 years. The study found that higher intake of total fruits and vegetables was associated with a lower risk of dementia (HR 0.80, 95% CI: 0.71, 0.91), particularly for green leafy vegetables (pooled HR per serving increment: 0.82; 95% CI: 0.70, 0.96).
Key findings
- Higher intake of total fruits and vegetables was associated with a lower dementia risk (HR 0.80; 95% CI: 0.71, 0.91).
- Green leafy vegetables showed a protective association with dementia risk (pooled HR per serving increment: 0.82; 95% CI: 0.70, 0.96).
- Significant inverse associations were found for vegetable intake (pooled HR 0.87; 95% CI: 0.82, 0.92).
- Fruit intake also demonstrated a protective effect (pooled HR 0.90; 95% CI: 0.85, 0.95).
Why it matters
Understanding the dietary factors that influence dementia risk is crucial for developing preventive strategies. This study highlights the potential role of fruits and vegetables in reducing dementia risk, which may inform dietary recommendations for older adults.