Gastrointestinal Support-Supports a Healthy Balance of Intestinal Flora! 5 Billion cfu, For Occasional Diarrhea, Supports A Healthy Balance Of Intestinal Flora, Useful When Traveling!Gastrointestinal Support-Supports a Healthy Balance of Intestinal Flora!Gastrointestinal Support5 Billion cfu For Occasional DiarrheaSupports a Healthy Balance of Intestinal FloraUseful When TravelingVegetarian FormulaSaccharomyces boulardii is a tropical strain of yeast first isolated from lychee and mangosteen fruit in 1923 by French scientist Henri Boulard. It is related to, but distinct from, Saccharomyces cerevisiae in several taxonomic, metabolic, and genetic properties. S. boulardii has been shown to maintain and restore the natural flora in the large and small intestine; it is classified as a probiotic.Saccharomyces boulardii is a probiotic yeast that survives stomach acid and colonizes the intestinal tract. It promotes the health of the intestinal tract, helps to encourage a healthy gut flora balance, and supports a balanced inflammatory response. Saccharomyces boulardii has also been shown to support proper gastrointestinal function during a disruption to the normal balance of gut flora.Boulard first isolated the yeast after he observed natives of Southeast Asia chewing on the skin of lychee and mangosteen in an attempt to control the symptoms of cholera. S. boulardii has been shown to be non-pathogenic, non-systemic (it remains in the gastrointestinal tract rather than spreading elsewhere in the body), and grows at the unusually high temperature of 37C. S. boulardii is often marketed as a probiotic in a lyophilized form and is therefore often referred to as Saccharomyces boulardii lyo. Note: Manufacturers continually change product specifications. While we try our best to keep product descriptions up to date, they do not necessarily reflect the latest information available from the manufacturer. We are not responsible for incorrect or outdated product descriptions and/or images.