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#3 in Probiotics Third-Party Tested

Jarrow Formulas Saccharomyces Boulardii + MOS

by Jarrow Formulas

"Clinically studied yeast probiotic with MOS prebiotic — 5 billion CFU for traveler's diarrhea, antibiotic support, and gut health"

Amazon Rating
4.6/5
Reviews
19,000+
Price Range
$18-25
Servings
90 capsules
GMP CertifiedNon-GMO
Our Editorial Rating
8.5
Very Good
FormCapsule
CategoryProbiotics
SubcategoryYeast Probiotic
View on Amazon

Overview

Jarrow Formulas Saccharomyces Boulardii + MOS combines the clinically studied probiotic yeast S. boulardii (5 billion CFU) with MOS (mannan-oligosaccharides) prebiotic from yeast cell walls. S. boulardii is unique among probiotics because it's a beneficial yeast, not a bacteria, meaning it's naturally resistant to antibiotics and can be taken alongside antibiotic therapy. It's one of the most researched probiotics for preventing traveler's diarrhea and antibiotic-associated diarrhea.

Key Ingredients

IngredientAmount
Saccharomyces Boulardii5 Billion CFU
MOS (Mannan-oligosaccharides)Included

Pros & Cons

What We Like

  • Antibiotic-resistant (yeast-based)
  • Clinically studied for diarrhea
  • Room temperature stable
  • 90 capsules (3-month supply)
  • 19,000+ reviews

What Could Be Better

  • Only one strain
  • 5 billion CFU (lower than multi-strain)
  • Not for immunocompromised
  • Yeast-based (not for yeast-sensitive)

Who Is This For?

Best For

  • Travel diarrhea prevention
  • Antibiotic recovery
  • C. difficile prevention
  • Those wanting shelf-stable probiotic

Not Ideal For

  • Those with yeast sensitivity
  • Immunocompromised individuals
  • Those wanting multi-strain probiotic
  • General daily probiotic use

Our Verdict

8.5/10 — Very Good

Jarrow S. Boulardii + MOS is the specialist probiotic — uniquely effective for antibiotic recovery and traveler's diarrhea because it's yeast-based and antibiotic-resistant. The MOS prebiotic addition enhances its gut-protective effects.

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