Not the guy, but pmc.ncbi.nlm.nih.gov/articles/PMC9028423/ was an interesting read.

A quick glance on google about Stevia might lead you to this link, but the preview shows “Results showed that stevia might lead to microbial imbalance, disrupting the communication between Gram-negative bacteria in the gut via either the LasR or RhlR …” which seems bad, until you read the rest of the good things that Stevia is supposedly doing.

Plus, the text behind that ellipses is “However, even if stevia inhibits these pathways, it cannot kill off the bacteria.”

So this might just be some good old misinformation on google’s part.