Ortho Biotic® includes a carefully assembled cast of probiotic organisms to support microflora balance and maintain a healthy environment for vitamin uptake and optimal immune function. Ortho Biotic® is a unique probiotic formula designed to deliver active organisms shown to promote healthy gut microflora, protect intestinal integrity and boost immune function. 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 to deliver superior results. 1 capsule per day or as recommended.