NFH S. Boulardii SAP 10 Billion, 30 Capsules - Store in Fridge

⚠️ Practitioner Recommendation Required

NFH is a practitioner-only brand. A practitioner recommendation is required before use. We may verify the information given. If you don't have a practitioner recommendation, please consider our other S. boulardii options (linked at the bottom of this page).

NFH S. Boulardii SAP 10 Billion Details

NFH S. Boulardii SAP 10 Billion delivers 10 billion CFU of Saccharomyces boulardii per capsule — a specific yeast probiotic (not a bacterial probiotic) with strong clinical research for acute gastroenteritis, antibiotic-associated diarrhea, and recurrent C. difficile infection. Unlike Lactobacillus and Bifidobacterium probiotics, S. boulardii is unaffected by antibiotics because it's a yeast, making it the gold-standard probiotic to take during a course of antibiotics. NFH is a practitioner-tier Canadian brand requiring practitioner recommendation. 30 capsules per bottle. Requires refrigeration.

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Quick Facts

Who NFH S. Boulardii SAP Is For

• Adults on a course of antibiotics wanting to prevent antibiotic-associated diarrhea (the most-researched use)
• People with recurrent C. difficile infections working with their healthcare practitioner on prevention
• Travellers in regions with high gastroenteritis risk (traveller's diarrhea prevention)
• Adults working with a naturopath or MD on SIBO, candida overgrowth, or specific gut imbalances
• People with H. pylori protocols where S. boulardii is included as adjunct support
• Adults with IBS-D (diarrhea-predominant) following a practitioner-guided protocol
• Anyone needing a probiotic that survives intact through antibiotic treatment

Who this product is NOT for: If you mostly want a general daily probiotic for digestive wellness, a Lactobacillus/Bifidobacterium blend (like CanPrev Pro-Biotik or Renew Life Ultimate Flora) is the right tool at lower cost. Severely immunocompromised people, those with central venous catheters, or people receiving chemotherapy should NOT use S. boulardii — there are documented cases of fungemia in catheter-dependent immunocompromised patients. People with yeast allergies should avoid. Without a practitioner recommendation, please consider our non-practitioner-gated S. boulardii options.

Vitamart's Take

S. boulardii is the one probiotic that keeps working while you're on antibiotics. It's a yeast, not a bacterium, so the antibiotics don't kill it. The strongest research is for preventing antibiotic-associated diarrhea and recurring C. difficile. NFH is a practitioner-only Canadian brand, so you'll need a recommendation from a naturopath or doctor to buy it. If you don't have one, our other S. boulardii options do the same job.

How NFH S. Boulardii SAP Compares

S. Boulardii vs Lactobacillus/Bifidobacterium Probiotics

Standard probiotics (Lactobacillus, Bifidobacterium genera) are great for general daily digestive wellness, immune support, and broad gut flora maintenance. They're sensitive to antibiotics, stomach acid, and have a broader role in long-term gut microbiome health. S. boulardii is a specialty tool: targeted, antibiotic-resistant, with specific clinical uses. They're complementary, not competing. Many integrative protocols use both — daily Lactobacillus/Bifidobacterium for baseline, S. boulardii during antibiotic courses or for targeted situations.

NFH Practitioner-Tier vs General Market S. Boulardii

General-market S. boulardii products (often 5 billion CFU, sold without practitioner gating) cover the basic use case at lower cost. NFH's practitioner-tier version delivers 10 billion CFU with the practitioner-channel quality controls NFH builds for. Practical use cases: general antibiotic-associated diarrhea prevention can be done with either tier. Recurrent C. difficile or complex protocols are where the practitioner-tier product makes more sense, often as part of a coordinated care plan.

S. Boulardii vs Spore-Forming Probiotics (Bacillus)

Spore-forming probiotics (Bacillus subtilis, B. coagulans) are another antibiotic-resistant approach — the spores survive antibiotics and germinate in the intestine. Different mechanism than yeast probiotics. Both are useful options for antibiotic-period support. Some protocols use both for layered coverage during heavy antibiotic courses or for SIBO/dysbiosis under practitioner guidance.

S. Boulardii vs Daily Multi-Strain Probiotic

If you take a daily probiotic for general wellness, that's your baseline. S. boulardii is the situational add-on when you're starting antibiotics, traveling, or working on a specific protocol. Don't replace your daily probiotic with S. boulardii — they serve different functions.

What Makes S. Boulardii Unique

• It's a yeast, not a bacterium. S. boulardii is a non-pathogenic yeast (Saccharomyces, the same genus as brewer's and baker's yeast, but a specific strain). Because antibiotics target bacterial cell walls, they don't affect yeast — making S. boulardii unique among probiotics.
• Transient passage. Unlike Lactobacillus or Bifidobacterium, S. boulardii doesn't permanently colonize the gut. It passes through, providing benefit while present — which is why it's typically taken daily during a specific protocol rather than for long-term maintenance.
• C. difficile binding. S. boulardii has research showing it can bind C. difficile toxins, reducing their ability to cause damage. This is part of why it's the gold-standard adjunct for recurrent C. difficile.
• Inhibits some bacterial toxins. Research has shown S. boulardii can inhibit toxin production and adhesion of several pathogenic bacteria including E. coli and Salmonella — part of the mechanism for traveller's diarrhea prevention.
• Stimulates brush-border enzymes. S. boulardii increases activity of enzymes on the intestinal lining that help with digestion and recovery — part of why it supports gut healing after gastroenteritis.
• Immunostimulatory effects. S. boulardii has been shown to increase secretory IgA — the immune antibody at mucosal surfaces — contributing to gut immune support.
• Calms gut inflammation signals. Research has shown S. boulardii can lower the inflammation signals in the gut, which may contribute to its role in IBD adjunct protocols.
• The catheter caution matters. The main safety consideration is that people with central venous catheters (chemotherapy patients, critically ill patients) have rare but documented cases of S. boulardii fungemia from environmental contamination. This is why it's contraindicated in immunocompromised catheter-dependent patients.

How To Use

Adults: Take as directed by your healthcare practitioner. Typical clinical dosing is 1–2 capsules daily, often started 1–2 days before antibiotic treatment begins and continued for several days after the antibiotic course finishes. May be taken with or without food. Store refrigerated to maintain CFU viability.

Cautions: Consult your healthcare practitioner before use. Do not use if you are immunocompromised, have a central venous catheter, are receiving chemotherapy, have a yeast allergy, are critically ill, or have a documented history of fungal infections. Consult your practitioner if pregnant or breastfeeding, taking immunosuppressants, or if you have any chronic medical condition.

Frequently Asked Questions

Pairs Well With

• Daily Multi-Strain Probiotic — baseline daily probiotic alongside situational S. boulardii
• L-Glutamine — supports gut lining recovery after antibiotic disruption
• Digestive Enzymes — supports digestion while gut recovers
• Prebiotics — feeds beneficial flora restoration after antibiotic courses

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Adults, adolescents and children ≥1 year old: Take one NFH S. Boulardii SAP 10 Billion capsule one to three times daily or as directed by your health-care practitioner.