Saccharomyces boulardii
A beneficial probiotic yeast (not a bacteria) that is naturally antibiotic-resistant — making it uniquely effective for antibiotic-associated diarrhea and C. difficile prevention.
Known Health Benefits
Active Compounds
Saccharomyces cerevisiae var. boulardii (live yeast)
Dosage Guidance
250–500 mg (5–10 billion CFU) daily
Always consult a healthcare provider for personalized dosing.
Potential Side Effects
Gas, bloating; contraindicated in immunocompromised patients (fungal infection risk)
Known Drug Interactions
Not affected by antibiotics (unlike bacterial probiotics); antifungals will eliminate it
Evidence Classification
Supported by randomized controlled trials (RCTs), systematic reviews, or meta-analyses published in peer-reviewed journals.
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This entry is for educational purposes only. It is not medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement regimen, especially if you take medications or have health conditions.