Sacro-B — Saccharomyces boulardii Probiotic (60 Vegcaps)
Sacro-B by Thorne provides Saccharomyces boulardii, a beneficial yeast-based probiotic with a uniquely robust track record for gut immune support. Unlike bacterial probiotics, S. boulardii is a yeast and therefore survives antibiotic treatment — making it invaluable during or after antibiotic use. Each capsule delivers 5 billion CFUs.*
Key Benefits
- 5 billion CFUs of Saccharomyces boulardii per capsule for potent gut support*
- Yeast-based — naturally antibiotic-resistant, ideal for use during antibiotic treatment*
- Supports gut immune function and mucosal barrier integrity*
- Promotes growth of beneficial intestinal flora*
- Effective for occasional diarrhea, traveler's diarrhea, and gut dysbiosis support*
Who Is This For?
Sacro-B is ideal for anyone taking or recovering from antibiotics, travelers prone to GI upset, individuals with Candida overgrowth concerns, or anyone looking to support a healthy gut microbiome and immune defense. Curated by Michelle Tonkin ND for clinical-grade gut restoration protocols.
Suggested Use
Take 1 capsule daily with or without food. May be increased under practitioner guidance. Store in a cool, dry place.
Frequently Asked Questions
Q: Can I take S. boulardii with antibiotics at the same time?
A: Yes — because it is a yeast, not a bacterium, antibiotics do not kill it. This makes it uniquely effective during antibiotic treatment.
Q: Does this help with Candida?
A: S. boulardii is often used as part of Candida protocols due to its ability to crowd out harmful yeast and restore beneficial flora. Consult your practitioner for a comprehensive approach.
Q: Is it safe during pregnancy?
A: Consult your healthcare provider before using any probiotic supplement during pregnancy.

