Stress, depression, diet, and the gut microbiota: Human-bacteria interactions at the core of psychoneuroimmunology and nutrition

This 2019 review presents findings from human studies to explain the bidirectional relationships between stress, diet, and the gut bacteria, and their effect on immune function and health. Stress and depression can modulate the composition of gut microbiota, which can lead to changes in eating behaviors e.g. promoting intake of highly palatable foods, and alter mood due to the release of metabolites, toxins and neurohormones. It has been proposed that probiotics supplementation may attenuate the increased stress responsiveness and heightened depression risk induced by the gut bacteria.
[NPID: stress, diet, gut bacteria, microbiome, gut microbiota, gut-brain axis, palatable foods, metabolites, toxins, neurohormones, probiotics, depression]

Year: 2019

Reference: Madison, A., & Kiecolt-Glaser, J. K. (2019). Stress, depression, diet, and the gut microbiota: human-bacteria interactions at the core of psychoneuroimmunology and nutrition. Current opinion in behavioral sciences, 28, 105–110. https://doi.org/10.1016/j.cobeha.2019.01.011