Saccharomyces boulardii: The Probiotic Yeast for Digestive Health—Benefits, Uses, and How It Works

Saccharomyces boulardii is a probiotic yeast that has earned a strong reputation for digestive health. Unlike bacterial probiotics, saccharomyces boulardii helps support a balanced gut microbiome by competing with harmful microbes, supporting the gut barrier, and modulating immune responses. It is known for its resilience to stomach acid and bile, which allows it to reach the intestines where it can exert its beneficial effects. Common uses include helping with antibiotic-associated diarrhea, traveler's diarrhea, and other acute diarrheal conditions, as well as supporting recovery after an intestinal upset. As with any supplement, talk with a healthcare professional to determine if saccharomyces boulardii is appropriate for you, especially if you have immune system concerns or underlying health conditions. Expert tips for using saccharomyces boulardii include following the product label and seeking professional guidance for dosing. If you’re considering it for travel or during an antibiotic course, many clinicians recommend starting a course before travel or at the start of antibiotics and continuing for a short period after the course ends. It’s typically taken with water and may be included as capsules or powders in probiotic regimens. Remember that individual responses vary, and it’s important to monitor how you feel and stay hydrated. Some people may benefit from pairing saccharomyces boulardii with a broader, gut-friendly plan that emphasizes a diverse diet and consistent hydration. InnerBuddies can help you understand how saccharomyces boulardii fits into your unique gut health picture. The InnerBuddies Gut Health Operating System is a modular platform that can power your gut microbiome testing journey with a range of features designed to illuminate how your microbiome responds to yeast probiotics like saccharomyces boulardii. From the Gut Microbiome Health Index, a 0–100 score built on collaboration with EAFIT University in Colombia, to detailed insights on the top 40 bacteria and their functions, you get a granular view of where saccharomyces boulardii may fit in your ecosystem. Explore how you compare against a healthy cohort across bacterial abundances and functional categories, and see how targeted analyses shed light on your personal digestion story. Learn more about the testing capabilities at InnerBuddies microbiome test. Beyond testing, InnerBuddies offers personalized probiotics and prebiotics advice, and personalized nutrition guidance that tie your diet to how your gut microbiome responds to yeast probiotics like saccharomyces boulardii. The platform’s Target Group analysis helps you drill into functional pathways relevant to Healthy Aging, Endurance Sport, Skin & Hair Health, and more, so you can see how saccharomyces boulardii supports your goals. InnerBuddies also provides consumer-facing gut test solutions, with many of the same B2B capabilities available directly to individuals. If you’re ready to join or explore partnership options, visit the InnerBuddies B2B page at InnerBuddies B2B, or learn more about ongoing access to gut health resources with a InnerBuddies gut health membership.