Hv, what you think about the quote:
"First, to stimulate the growth of intestinal flora by feeding the remaining bacteria with abundant fiber. It kind of works initially, but it’s a bad idea, really, because the excess acidity from fermenting too much fiber kills off an already dwindling population of hard-working microbes."
I found it when I was reading a book about gut for restoring intestinal flora to prevent constipation and diarrhea.
It kind of makes sense that excess acidity from lactic acid might kill some of the bacteria but I agree with you that lactic acid prevents pathogens and yeasts from growing and keeps bowel healthy.