I had bad dysbiosis, and cured it--although I did not cure the rest. I used large amounts of goat yogurt.
I know that this did it, because I watched it microscopically. I first had very little bacteria in stool smear samples. After a week of goats yogurt, I noticed an increase in big lactobacillus and bugaricus species. After a month, there was more bacteria than I ever seen.
Big difference from "cookie crumb" undigested stool.
The original cause I now know, is "hookworm" and a few other protozoa parasites, and possibly yeast. Shroom