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Tea, cocoa, coffee, and affective disorders: vicious or virtuous cycle?
Tatiana García-Blanco1, Alberto Dávalos1, Francesco Visioli2
1IMDEA-Food, CEI UAM + CSIC, Madrid, Spain.
Journal of Affective Disorders
|December 6, 2016
Summary
Consuming tea, cocoa, and coffee may offer protective benefits against depression. Further research is needed to confirm these findings and provide public health recommendations.
Area of Science:
- Neuroscience
- Nutritional Psychiatry
- Public Health
Background:
- Psychiatric disorders are globally increasing, necessitating research into lifestyle factors like diet for prevention and treatment.
- Diet and exercise influence neuronal development and protect against neurological conditions.
- Cocoa, tea, and coffee, rich in polyphenols, are investigated for their positive impact on mental health, including mood and cognition.
Purpose of the Study:
- To systematically review human studies on the effects of tea, cocoa, and coffee consumption on affective disorders, particularly depression and anxiety.
Main Methods:
- A systematic literature search was conducted in April 2016 using MEDLINE, focusing on studies from the past 10 years.
- 17 human studies investigating whole foods or their components were selected from 955 screened articles.
Main Results:
- The systematic review suggests a potential protective effect of tea, cocoa, or coffee consumption against depression.
Conclusions:
- Current evidence primarily stems from observational studies, indicating a need for more rigorous human trials and basic science research.
- Definitive public health recommendations regarding these beverages for mental health cannot yet be made.
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