So let's for a moment agree that it is.
Even if we do, it's difficult to imagine there would be one universal "best" mircobiome makeup spanning age, sex, race, diet, geography, comorbidities, etc. Meaning even if we had thoughts about what a "healthy" microbiome was, what's healthy for one person might not be healthy for another.
But back to us agreeing they're hugely important and implicated in everything.
If that's the case, should you really be purposefully trying to mess with yours given we basically haven't even begun to study the impact of messing with them over time?
Me?
I'll stick to the basics.