I propose to incorporate the concepts of brain microbiota and microbial consciousness in the Orch OR theory of human consciousness with the goal of increasing its explanatory and predictive powers. If consciousness arises from quantum computations in cytoskeletal structures inside human neurons, there is no theoretical impediment at hypothesizing that it might also occur in the cytoskeletal structures of the microbes resident in our brains. If the concept of the brain microbiota could be integrated in a general Orch OR theory, its explanatory and predictive powers would be vastly increased.