Ortho Biotic is a new probiotic formula designed to deliver active organisms shown to promote healthy gut microflora, and support intestinal health. Included in this formula is Saccharomyces boulardii, an extensively researched microorganism shown to help restore microflora balance by enhancing commensal organism function. Each Ortho Biotic capsule provides seven proven probiotic strains chosen for their ability to withstand the harsh gastrointestinal (GI) environment and adhere to the intestinal tract.