Dietary Patterns Derived by Cluster Analysis are Associated with Cognitive Function among Korean Older Adults
Jihye Kim1, Areum Yu2, Bo Youl Choi3
1Department of clinical nutrition, Graduate School of Health Sciences, Dongduk Women's University, 23-1 Wolgok-dong, Sungbuk-gu, Seoul 136-714, Korea. eluzai81@gmail.com.
Nutrients
|June 3, 2015
Summary
A healthy diet rich in multigrain rice, fish, dairy, and fruits (MFDF) was linked to better cognitive function in older Korean adults. This dietary pattern showed a lower risk of cognitive impairment compared to diets high in white rice and noodles (WNC).
Area of Science:
- Gerontology
- Nutritional Science
- Cognitive Health
Background:
- Dietary patterns significantly influence health outcomes, particularly in aging populations.
- Understanding nutrition's role in cognitive decline is crucial for public health interventions.
- Previous research suggests a link between diet and cognitive function, but specific patterns require further investigation.
Purpose of the Study:
- To identify major dietary patterns among older Korean adults using cluster analysis.
- To examine the association between identified dietary patterns and cognitive function.
- To investigate the relationship between specific food groups and cognitive performance in this demographic.
Main Methods:
- Cross-sectional study utilizing data from the Korean Multi-Rural Communities Cohort Study.
- Inclusion of 765 participants aged 60 years and over.
- Dietary intake assessed via a 106-item quantitative food frequency questionnaire.
- Cognitive function evaluated using the Korean version of the Mini-Mental Status Examination (MMSE-KC).
- K-means cluster analysis employed to identify dietary patterns: "MFDF" (Multigrain rice, Fish, Dairy, Fruits) and "WNC" (White rice, Noodles, Coffee).
Main Results:
- Two distinct dietary patterns were identified: MFDF and WNC.
- Participants in the MFDF pattern exhibited higher mean scores on the total MMSE-KC and orientation subscale.
- The MFDF dietary pattern was associated with a significantly lower risk of cognitive impairment (OR 0.64, 95% CI 0.44-0.94) compared to the WNC pattern, after adjusting for covariates.
Conclusions:
- The MFDF dietary pattern, characterized by high consumption of multigrain rice, fish, dairy products, and fruits, is associated with better cognitive function in older Korean adults.
- This finding suggests that specific dietary choices may play a protective role against cognitive decline in aging.
- Public health recommendations for older adults could emphasize the adoption of the MFDF dietary pattern to support cognitive health.
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