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Non-alcoholic beverage and depression

European Journal of Clinical Nutrition volume 73, page 157 (2019)Cite this article

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Kang et al. conducted a meta-analysis to investigate the association between non-alcoholic beverage consumptions and risk of depression [1]. Pooled relative risks (RR) (95% confidence intervals (CIs)) of high consumption of coffee and tea for depression were 0.73 (0.59–0.90) and 0.71 (0.55–0.91), respectively. In contrast, pooled RR (95% CI) of high consumption of soft drinks for depression was 1.36 (1.24–1.50). I have some concerns with this article.

The authors cited three papers of meta-analysis. First, Grosso et al. [2] reported the association between coffee, tea, caffeine and depression, and pooled relative risk (95% CI) of high consumption of coffee and tea for depression were 0.76 (0.64–0.91) and 0.70 (0.48–1.01), respectively. In addition, pooled RR (95% CI) of high consumption of caffeine for depression was 0.84 (0.75–0.93), which was observed by gathering prospective studies. Furthermore, there was a nonlinear J-shaped relationship between coffee consumption and depression, and risk assessment on the low level of coffee consumption for depression should be conducted as further studies.

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References

  1. Kang D, Kim Y, Je Y. Non-alcoholic beverage consumption and risk of depression: epidemiological evidence from observational studies. Eur J Clin Nutr. 2018 https://doi.org/10.1038/s41430-018-0121-2

  2. Grosso G, Micek A, Castellano S, Pajak A, Galvano F. Coffee, tea, caffeine and risk of depression: a systematic review and dose-response meta-analysis of observational studies. Mol Nutr Food Res. 2016;60:223–34.

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  4. Dong X, Yang C, Cao S, Gan Y, Sun H, Gong Y, et al. Tea consumption and the risk of depression: a meta-analysis of observational studies. Aust N Z J Psychiatry. 2015;49:334–45.

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  1. Department of Hygiene and Public Health, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-Ku, Tokyo, 113-8602, Japan

    Tomoyuki Kawada

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  1. Tomoyuki Kawada
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Correspondence to Tomoyuki Kawada.

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Kawada, T. Non-alcoholic beverage and depression. Eur J Clin Nutr 73, 157 (2019). https://doi.org/10.1038/s41430-018-0315-7

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