C. difficile

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:

* 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.