Relationship between dietary pattern and depressive symptoms: an international multicohort study
Hanzhang Wu1,2,3, Yeqing Gu4, Ge Meng3,5
1School of Public Health, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, West Area, Tuanbo New Town, Tianjin, Jinghai District, 301617, China.
Summary
Dietary patterns influence depressive symptoms. A traditional Chinese diet or healthy eating may reduce risk, while processed foods are linked to increased risk.
Area of Science:
- Nutritional Psychiatry
- Epidemiology
- Public Health
Background:
- Inconsistent findings exist regarding the link between dietary patterns and depressive symptoms.
- Prospective studies are needed to clarify this association.
Purpose of the Study:
- To prospectively investigate the association between dietary patterns and the risk of depressive symptoms.
- Utilized data from two large cohort studies: Tianjin Chronic Low-grade Systemic Inflammation and Health (TCLSIH) and UK Biobank.
Main Methods:
- Factor analysis identified dietary patterns from food frequency questionnaires.
- Depressive symptoms were assessed using the Zung Self-Rating Depression Scale (TCLSIH) and hospital records (UK Biobank).
- Cox proportional hazards regression models analyzed the association between diet and depression risk.
Main Results:
- Traditional Chinese and healthy dietary patterns were associated with a lower risk of depressive symptoms.
- Processed food and sugar-rich dietary patterns were linked to a higher risk of depressive symptoms.
- Meat dietary pattern showed no significant association with depressive symptoms.
Conclusions:
- Dietary choices significantly impact mental health, specifically the risk of developing depressive symptoms.
- Promoting healthy and traditional dietary patterns may be a strategy for depression prevention.
- Reducing intake of processed and sugar-rich foods could mitigate depression risk.
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