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Vegetarian Diet Is Associated with Lower Risk of Depression in Taiwan
Yu-Chih Shen1, Chiao-Erh Chang2, Ming-Nan Lin3,4
1Department of Psychiatric, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 970, Taiwan.
Nutrients
|April 3, 2021
Summary
Taiwanese vegetarian diets are associated with a reduced risk of depression. This prospective cohort study found that adhering to a vegetarian diet may be a key factor in preventing depressive disorders.
Area of Science:
- Nutritional Psychiatry
- Epidemiology
- Public Health
Background:
- Depression is a significant global health concern.
- Dietary patterns are increasingly recognized as modifiable risk factors for mental health.
- Vegetarian diets are common in Taiwan, but their impact on depression risk requires investigation.
Purpose of the Study:
- To investigate the association between Taiwanese vegetarian diets and the risk of developing depressive disorders.
- To analyze prospective cohort data to determine if vegetarianism influences depression incidence.
Main Methods:
- Prospective cohort study design utilizing the Tzu Chi Vegetarian Study (TCVS) data.
- Inclusion of 12,062 participants from Taiwan, with dietary intake assessed via food frequency questionnaires.
- Depression incidence ascertained through linkage to the National Health Institute Research Database (NHIRD) and analyzed using Cox proportional hazards regression.
Main Results:
- A lower incidence of depressive disorders was observed in the vegetarian group compared to non-vegetarians (2.37 vs. 3.21 per 10,000 person-years).
- Vegetarian diet was associated with a significantly reduced risk of subsequent depressive disorders (adjusted hazard ratio: 0.70; 95% CI: 0.52-0.93).
Conclusions:
- Taiwanese vegetarian diets are linked to a lower risk of developing depression.
- Dietary choices may play a crucial role in the prevention of depressive disorders.
- Further research is needed to generalize these findings to a global population.
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