Hypothesis: bacteria control host appetites.

@article{Norris2013HypothesisBC,
  title={Hypothesis: bacteria control host appetites.},
  author={Vic Norris and F Pi{\~n}eyro Molina and Andrew T. Gewirtz},
  journal={Journal of bacteriology},
  year={2013},
  volume={195 3},
  pages={411-6}
}
To help investigate the relationship between inflammatory and other diseases and the composition of the gut microbiota, we propose that a positive-feedback loop exists between the preferences of the host for a particular dietary regimen, the composition of the gut microbiota that depends on this regimen, and the preferences of the host as influenced by the gut microbiota. We cite evidence in support of this hypothesis and make testable predictions.