I can't offer info on a specific brand... but I do know there was a study of good bacteria AND the results were surprising. Single strain good bacteria performed better than multi strains combined. Apparently the multiple strains simply competed against each other. The study was in a link somewhere in this site years ago, but I can't recall the thread or the date. I do recall that, before that study, there were ads on TV for a brand name yogurt that raved about how many different strains of good bacteria (pro-biotics) that it contained.. After the study, those ads disappeared. I don't recall the name of the brand