The survival of microorganisms inhabiting the intestinal tract depends on the nutrients provided by the host, with the latter obtaining them through food intake. It is hence not surprising that the co-evolution of gut bacteria and their hosts, including humans, shaped intrinsic interactions between their respective metabolisms with an impact on host feeding behavior. Understanding molecular pathways underlying such interactions may aid in the development of new therapeutic approaches for several pathological conditions accompanied by altered feeding behavior. A Special Issue titled "Gut Microbiota-Brain Axis in Regulation of Feeding Behavior" contributes to this topic of research, with eight papers covering its various aspects such as autoprobiotics, metabolic diseases and anorexia.
Keywords: anorexia; appetite; autoprobiotics; dysbiosis; feeding behavior; gut microbiota; metabolic diseases; neuropsychiatric diseases; obesity; probiotics.