A lot of the yogurt you buy anymore is closer to being pudding than it is to being yogurt. It has milk thickeners and artificial sweeteners but no cultures.Just get a juicer. Or eat plenty of yogurt & kefir.
2 different Doctors I see recommended pro-biotics.
I am trying them now and I am not a happy camper.
I know you don't care, but...Tried it once.
Shit out about 4 gallons of mucusy shiny stool.