Saccharomyces Boulardii + MOS, 90 Capsules
Jarrow Formulas Saccharomyces Boulardii + MOS combines a clinically studied probiotic yeast strain with mannooligosaccharides (MOS), a prebiotic derived from yeast cell walls, to support intestinal microflora balance and digestive health.
May be a fit for
- Adults seeking Saccharomyces boulardii support during or after antibiotic use
- Travelers wanting S. boulardii to help maintain digestive comfort abroad
- Those using MOS to support healthy gut microflora balance
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Jarrow Formulas Saccharomyces Boulardii + MOS combines a clinically studied probiotic yeast strain with mannooligosaccharides (MOS), a prebiotic derived from yeast cell walls, to support intestinal microflora balance and digestive health. This formulation is well-suited for travelers, those completing antibiotic courses, or anyone seeking to maintain a resilient gut environment.
Why It's Worth Considering: Pairing S. boulardii with MOS adds a prebiotic layer that may help bind unwanted microorganisms in the gut lumen, a thoughtful combination not always found in single-strain probiotic yeast products.
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Product details
Who it may suit
May be a fit for
- Adults seeking Saccharomyces boulardii support during or after antibiotic use
- Travelers wanting S. boulardii to help maintain digestive comfort abroad
- Those using MOS to support healthy gut microflora balance
- Individuals seeking probiotic yeast support for occasional loose stool
Considerations
- Severely immunocompromised (consult physician)
- Active pancreatitis
- Central venous catheters (risk of translocation)
- SIBO (some probiotics may worsen — consult practitioner)
Compatibility & interactions
Works Well With
Take Separately From
No significant interactions identified. Always consult your healthcare provider.
What to expect over time
Colonization Begins
Beneficial bacteria begin establishing colonies
GI Improvement
Reduced bloating, improved regularity
Immune Modulation
Enhanced immune markers, fewer infections
Microbiome Shift
Sustained diversity improvement
Based on clinical probiotic research. Initial die-off symptoms (temporary bloating) may occur in the first week.
Compare the options
Compare Probiotic Types
Which strain type is right for you?
| Feature | Multi-Strain (this) | Spore-Based | Saccharomyces | Single-Strain |
|---|---|---|---|---|
| Survivability | Moderate (refrigerate) | Excellent (shelf-stable) | Excellent (yeast-based) | Moderate |
| Best For | General gut health | Antibiotic recovery | Diarrhea, C. diff | Targeted conditions |
| CFU Range | 10-100 billion | 2-5 billion (potent) | 5-10 billion | 1-50 billion |
| Research | Extensive | Growing | Strong (S. boulardii) | Strain-specific |
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Coverage varies by product and brand.
5351 product and brand ratings and mentions across 3 sources.
These are broader practitioner and research perspectives. They may discuss the brand or other products, rather than this exact formula.
Explore the source sentiment summary
Jarrow Formulas is generally well-regarded as a trusted supplement brand across multiple product lines, though reviews rarely address Saccharomyces Boulardii specifically.
This summary includes broader brand discussion. Individual experiences are not evidence of product effectiveness.
A few useful answers.
Research & further reading
More category questions
How many CFU do I need in a probiotic?
For general health maintenance, 10-20 billion CFU is sufficient. For therapeutic use (post-antibiotics, IBS, immune support), 50-100 billion CFU is recommended. More important than CFU count is strain diversity and survivability — a 5 billion spore-based probiotic may be more effective than a 100 billion conventional strain that doesn't survive stomach acid.
Should I take probiotics with food or on an empty stomach?
Take with food or within 30 minutes of eating. Food buffers stomach acid and increases probiotic survival by up to 100x. A small amount of fat in the meal further improves survival. Exception: spore-based probiotics (Bacillus strains) are acid-resistant and can be taken anytime.
Can probiotics cause bloating at first?
Yes — temporary bloating, gas, or changes in bowel habits during the first 3-7 days is common and actually a positive sign. This 'die-off' reaction occurs as beneficial bacteria displace harmful organisms. If symptoms persist beyond 2 weeks, reduce the dose by half and gradually increase.
Do I need to refrigerate probiotics?
It depends on the strain. Most Lactobacillus and Bifidobacterium strains require refrigeration for viability. Spore-based probiotics (Bacillus) and Saccharomyces boulardii are shelf-stable. Check the label — if it says 'viable at time of manufacture' rather than 'at time of expiration,' refrigerate.
Can I take probiotics with antibiotics?
Yes — in fact, it's strongly recommended. Take the probiotic 2-3 hours apart from the antibiotic dose (so the antibiotic doesn't kill the probiotic). Saccharomyces boulardii is particularly resistant to antibiotics. Continue probiotics for at least 2-4 weeks after completing the antibiotic course.
How long should I take probiotics?
For acute use (post-antibiotics, traveler's diarrhea), 4-8 weeks minimum. For chronic conditions (IBS, immune support), ongoing daily use is recommended. Probiotics don't permanently colonize — they exert benefits while you take them and for a limited time after stopping. Think of them as a daily maintenance supplement, not a one-time fix.
Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.