Effects of polyphenols in a Mediterranean diet on symptoms of depression: A systematic literature review

Effects of polyphenols in a Mediterranean diet on symptoms of depression:

The aim of this 2019 systematic review by Bayes et al. was to evaluate the effects of polyphenols present in the Mediterranean diet on depressive symptoms. There has been speculation that the diet’s protective role in depression is related to its high polyphenol content. The authors’ systematic search for literature included both observational and experimental research on adults aged between 18 and 80 years, that assessed depression scores in relation to polyphenol intake. The 37 studies included (17 experimental, 20 observational) examined several polyphenols, including those from tea, coffee, citrus, nuts, soy, grapes, legumes, and spices. The review found that 29 of the 37 studies demonstrated polyphenols having a statistically significant effect on depression, supporting the theory that polyphenols can alleviate depressive symptoms among adults. [NPID: polyphenols, Mediterranean diet, depression]

Year: 2019

Reference: Jessica Bayes, Janet Schloss, David Sibbritt, Effects of Polyphenols in a Mediterranean Diet on Symptoms of Depression: A Systematic Literature Review, Advances in Nutrition, Volume 11, Issue 3, May 2020, Pages 602–615, https://doi.org/10.1093/advances/nmz117

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