I personally avoid these SBOs

I personally avoid these SBOs (Soil Based Organisms): bacillus subtilis and bacillus lichenformis, because I read awhile back that they can cause some kind of problem - and that other types of probiotics do not cause that problem. What was worse was that if those two kinds of SBOs cause the problem in you, they are nearly impossible to get out of your body and you are stuck with them.

Sorry this is so vague; just wanted you to know you are not the only person who has heard something bad about these particular two probiotics. Again, they are different than other kinds of probitiocs.