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Saccharomyces boulardii is a yeast studied for its benefits for the digestive system. It is a variation on the strain Saccharomyces cervisiae. This yeast has been used for over 30 years as a treatment for diarrhea.
*Candida albicans* is a fungus that naturally grows in the human body, but if its numbers become too large it can cause gastrointestinal infections. *Saccharomyces boulardii* was tested for its ability to counterbalance *Candida albicans* and was found to diminish the activity of the harmful fungus.
The ability of *Saccharomyces boulardii* to reduce antibiotic-associated diarrhea (AAD) was tested in a human double-blind, placebo-controlled study in 1995. In the group receiving *Saccharomyces boulardii*, 7 of 97 (7.2%) of the patients experienced diarrhea, whereas 14 of 96 (14.6%) of the placebo group experienced diarrhea.
- The antagonistic effect of Saccharomyces boulardii on Candida albicans filamentation, adhesion and biofilm formation.FEMS yeast research,2009
- Prevention of beta-lactam-associated diarrhea by Saccharomyces boulardii compared with placebo.The American Journal of Gastoenterology,1995