Protocol · Digestive Health
Clostridioides difficile Infection Prevention and Recovery Protocol
Probiotics (Saccharomyces boulardii) and Probiotics (Lactobacillus/Bifidobacterium) are the core of this stack, with 5 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Clostridioides difficile Infection Prevention and Recovery.
We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.
The stack
7 supplements · none graded yet
| Grade | Supplement | Amount listed | Why it’s in the stack | Evidence on file |
|---|---|---|---|---|
| Primary stackThe core of this protocol | ||||
| Probiotics (Saccharomyces boulardii) | Amount listed: 250–500 mg twice daily during and after antibiotic treatment | Yeast probiotic that reduces C. difficile recurrence; survives antibiotics; produces anti-toxin protease | Not graded yet | |
| Probiotics (Lactobacillus/Bifidobacterium) | Amount listed: 20–50 billion CFU daily (multi-strain formula) | Restore healthy gut microbiome; competitive exclusion of C. difficile; support colonization resistance | Not graded yet | |
| Supporting stackListed as additions to the core | ||||
| Vitamin D | Amount listed: 2,000–4,000 IU daily | Supports immune function; deficiency associated with C. difficile risk and severity | Not graded yet | |
| Zinc | Amount listed: 15–30 mg daily | Supports immune function and gut barrier integrity; may reduce infection severity | Not graded yet | |
| Glutamine | Amount listed: 5–10 g daily | Supports intestinal barrier function and gut mucosal health | Not graded yet | |
| Fiber/Prebiotics | Amount listed: 5–10 g prebiotic fiber daily (introduce gradually) | Feeds beneficial gut bacteria; supports microbiome recovery after antibiotics | Not graded yet | |
| Colostrum | Amount listed: 1–3 g daily | Contains immunoglobulins; may help neutralize C. difficile toxins | Not graded yet | |
How this protocol works
In plain language
Clostridioides difficile (C. diff) is a bacterium that causes severe diarrhea and colitis, primarily in people who have recently taken antibiotics. Antibiotics disrupt the normal gut microbiome, allowing C. diff to overgrow and produce toxins that damage the intestinal lining. Symptoms range from mild diarrhea to severe, life-threatening colitis. Recurrence is common (20-30% after first episode).
CRITICAL: C. difficile infection requires medical treatment. Mild-moderate cases are treated with vancomycin or fidaxomicin antibiotics. Severe cases may require hospitalization, IV fluids, and sometimes surgery for fulminant colitis. Stop the causative antibiotic if possible. These supplements support prevention and recovery but are NOT treatments for active infection. If you have severe diarrhea, fever, abdominal pain, or bloody stool, seek medical care immediately.
PREVENTION IS KEY:
- Avoid unnecessary antibiotics
- If antibiotics are needed, take probiotics (start same day and continue 2 weeks after)
- Good hand hygiene (C. diff spores are NOT killed by alcohol hand sanitizers - use soap and water)
- Hospital infection control measures
Saccharomyces boulardii* is a yeast probiotic with the strongest evidence for preventing C. diff. It survives antibiotics (unlike bacterial probiotics) and produces enzymes that break down C. diff toxins. Meta-analyses show significant reduction in C. diff infections.
Lactobacillus and Bifidobacterium probiotics* help restore the normal gut microbiome and provide "colonization resistance" against C. diff.
Vitamin D* deficiency is associated with increased C. diff risk and severity.
Prebiotics* (fiber) feed beneficial bacteria and support microbiome recovery.
Glutamine* supports the gut barrier.
For recurrent C. diff: Fecal microbiota transplant (FMT) is highly effective (>90% cure rate) and increasingly available. Discuss with your gastroenterologist.
Expected timeline: Probiotics should be started with antibiotics and continued for at least 2-4 weeks after. Full microbiome recovery can take months.