It's all about the REUTERIN.  Reuterin is an antimicrobial compound produced by Lactobacillus reuter. THEY'RE EVEN FN WITH THE NAME OF IT TO HIDE IT FROM YOU ALL SUDDENLY.

"AI Overview
Reuterin is a potent broad-spectrum antimicrobial compound naturally produced by the probiotic bacterium Limosilactobacillus reuteri (formerly Lactobacillus reuteri) during the anaerobic metabolism of glycerol. It is highly effective at neutralizing harmful pathogens like E. coli and C. difficile while preserving beneficial gut flora. This historic update was made to better group the bacteria based on their distinct genetics, ecology, and metabolism.

"The name was officially changed in April 2020 when a global team of scientists split the massive, overly broad Lactobacillus genus into 25 more specific genera to better reflect the distinct genetics and metabolism of the bacteria. As part of this reclassification, Lactobacillus reuteri was assigned to the new genus Limosilactobacillus..."

...get it while you still can. Because they are going to try to fuck it up.