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Relationship between dietary diversity and sleep quality: a Chinese community-based study
Xiaoge Wang1,2, Dan Luo3,4, Tingting Li5
1Department of Nutrition, School of Public Health, Wuhan University, Wuhan, 430071, China.
Sleep & Breathing = Schlaf & Atmung
|March 1, 2024
Summary
A diverse diet is linked to better sleep quality in Chinese adults over 45. Higher dietary diversity scores (DDS) and food variety scores (FVS) were associated with reduced odds of poor sleep.
Area of Science:
- Nutrition Science
- Gerontology
- Sleep Medicine
Background:
- Dietary diversity is crucial for overall health.
- Sleep quality is a significant factor in healthy aging.
- Limited research exists on the diet-sleep relationship in older Chinese adults.
Purpose of the Study:
- To investigate the association between dietary diversity and sleep quality.
- To explore this relationship in Chinese middle-aged and older adults.
Main Methods:
- Prospective cohort study (Lifestyle and Healthy Aging of Chinese Square Dancer Study).
- Dietary intake assessed via semiquantitative food frequency questionnaire.
- Sleep quality measured using the Pittsburgh Sleep Quality Index (PSQI).
- Dietary diversity quantified using dietary diversity score (DDS) and food variety score (FVS).
Main Results:
- 2409 participants included; 31.8% experienced poor sleep quality.
- Higher DDS correlated with 18% lower odds of poor sleep (OR=0.82).
- Highest FVS quartile showed 32% lower odds of poor sleep compared to the lowest (OR=0.68).
Conclusions:
- A positive correlation exists between higher dietary diversity (FVS and DDS) and better sleep quality.
- Promoting a diverse diet may improve sleep quality in middle-aged and older adults.
- Findings highlight the role of nutrition in sleep health for aging populations.
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