Gut Microbiota, Bacterial Translocation, and Interactions with Diet: Pathophysiological Links between Major Depressive Disorder and Non-Communicable Medical Comorbidities.
Slyepchenko, Anastasiya, Maes, Michael, Jacka, Felice N et al.·Psychotherapy and psychosomatics·2017
This review examines how changes in gut bacteria and a 'leaky gut' (where bacteria can cross the intestinal barrier) may contribute to depression and related conditions like ME/CFS. The authors found evidence that diet, gut bacteria composition, and immune system activation are interconnected, and that these connections may explain why depression often occurs alongside conditions like irritable bowel syndrome, ME/CFS, obesity, and diabetes.