Just shooting from the hip, I'm going to guess that deliberately destabilizing ecosystems that aren't known to be unhealthy is generally not going to make them

Just shooting from the hip, I'm going to guess that deliberately destabilizing ecosystems that aren't known to be unhealthy is generally not going to make them more healthy. I wouldn't say that it's impossible to come up with some sort of microbial suppository that can take a healthy (for the host) microbiome and make it even more beneficial to the host. But, given the level of inter-person diversity in gut flora, I can't think of any particular reason to believe that it's likely that there's some universal treatment that would be beneficial to everyone regardless of their existing flora.