[nneonneo]

Ok interesting, but I wonder: if you load up a bacteria that kills other bacteria in your mouth, and it ends up in your gut, will it mess up the microbiome there? The weight gain studies suggest not (and I’m not even sure if S mutans is a major component of the gut microbiome), but it seems like the kind of thing that’d be worth checking for. (If there are already studies on this - happy to see them).

Also - if these things produce ethanol, even small amounts, are they going to be safe for children? The assumption here is that this strain would be passed mother-to-child, so this isn’t an unreasonable concern.