Yeasts are single-celled fungi that can play a beneficial role in gut health. The most well-known probiotic yeast is Saccharomyces boulardii, which is used to support digestive health and restore gut flora after disturbances such as antibiotic use.

Signs and Benefits:

  • Digestive Health: Yeasts help maintain a balanced gut microbiome and can alleviate diarrhea and other digestive issues.
  • Immune Support: They may enhance immune function by promoting the activity of immune cells.

Sources:
Yeasts are commonly found in fermented foods like kombucha, certain types of yogurt, and as dietary supplements.