Does Saccharomyces boulardii colonize the intestinal tract?
S. boulardii does not colonize the human intestinal tract and is not one of the micro-organisms that normally inhabit the intestines. It is a transient yeast that passes through the intestines after ingestion. S. boulardii does not attach to the mucosal cells lining the intestinal lumen, but exerts its beneficial effects on the host as it moves through the gastrointestinal tract.
