Candida albicans is in healthy human guts – but is NOT a probiotic. C. albicans overgrowth needs to be treated by a doctor.

Saccharomyces is a genus of probiotic yeast that consist of several different species, the most well-known of this genus are Saccharomyces cerevisiae and Saccharomyces boulardii (S. boulardii). Scientists and pharmacists don’t generally think of this yeast as being...