We use superior science to make smarter formulas like Jarrow Formulas® Jarro-Dophilus® Gut Calm combines the clinically documented probiotic yeast, Saccharomyces boulardii, with three patented probiotic strains clinically shown to calm the gut.* Thanks to superior science that makes smarter formulas, it supports relief from occasional gas, bloating, and discomfort from gut irregularity & lactose. In particular, S. boulardii aids the integrity of the cells lining the gut, promotes digestive enzyme production, and supports the growth of beneficial bacteria.* *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.