Saccharomyces boulardii is a well-studied probiotic yeast known for its ability to support digestive health, protect the intestinal lining, and promote a balanced microbiome. Unlike bacterial probiotics, S. boulardii is naturally resistant to stomach acid, antibiotics, and temperature changes, allowing it to remain active throughout the digestive system.
This probiotic yeast plays an important role in regulating inflammation, improving short-chain fatty acid production, enhancing immune signaling, and inhibiting the growth of harmful bacteria and pathogens. It is frequently used to support conditions such as diarrhea, post-antibiotic dysbiosis, traveler’s diarrhea, and gut barrier dysfunction.
On the Gut Zoomer panel, levels of S. boulardii may indicate recent supplementation, the presence or absence of protective yeast species, or shifts in microbial balance. While commonly beneficial, elevated or unexpected findings may require evaluation of supplementation habits or broader signs of gut dysregulation.
Saccharomyces boulardii
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