Key result
Higher diet diversity linked to ~12% lower odds of poor sleep per point increase.
Why the study?
Limited data exist on how overall diet diversity relates to sleep health among medical students in low- and middle-income countries.
Is higher diet diversity associated with better sleep quality among medical students?
Population
246 undergraduate medical students at Rawalpindi Medical University
Comparison
Diet diversity score levels
Design
Cross-sectional study
Authors
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Diet diversity may merit consideration for sleep in medical students; leaves open causality pending prospective trials.
Cross-Sectional (n=246)
No
Is higher diet diversity associated with better sleep quality among medical students?
Odds Ratio: 0.88 (95% CI 0.78–1)
p-value: p=0.042
Greater diet diversity is associated with better sleep quality among medical students, suggesting diet and BMI management as potential targets for improving sleep.
Salam et al. (2026) conducted a cross-sectional in Poor sleep quality (n=246). Diet diversity vs. Lower diet diversity was evaluated on Poor sleep quality (PSQI global score > 5) (OR 0.88, 95% CI 0.78-1.00, p=0.042). Higher diet diversity was associated with better sleep quality among medical students, reducing the odds of poor sleep by 11.8% per one-point score increase (OR 0.88; 95% CI 0.78-1.00; p=0.042).
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