> So you dislike

You said dislike. I said suspicious. One's an opinion, the other an invitation for science.

> vinegar, salt, and any fermented foods that suppress microbial agents?

In the gut microbiota broad system sequencing experiments I've consumed reports from, even altering diet from one primary food source to another can result in complete restructuring of the gut ecosystem as quickly as within 24 hours. And switching back to the original food source didn't return to an identical gut ecosystem. Many studies show direct connections between gut microbiota and specific and broad health impacts.

So I think suspicious is right. There is much yet to be learned.