It has been previously hypothesized that gut microbes could control a host’s eating behaviour through several potential mechanisms, including microbial manipulation of reward pathways, production of toxins that alter mood, changes to receptors (including taste receptors), and interference with neurotransmission via the vagus nerve—the main neural axis between the gut and the brain.

Can gut bacteria control your appetite?

27 Apr 2016

by Kristina Campbell

Can gut microbes generate cravings? Can they make you feel unsatisfied until you eat the food they need for their own survival? These were the questions covered by a scientific review published in BioEssays in 2014.