Saccharomyces boulardii

Which probiotic is it in? All

Species: Fungi

Location in the body: The Ileum, which is part of the intestine, and the colon.

This microbe produces: A protease is an enzyme that catalyzes proteolysis, the breakdown of proteins into smaller polypeptides or single amino acids. They play an essential role in supporting blood clotting, cell division and the recycling of proteins.


A tropical species of yeast first isolated in 1923 by French scientist Henri Boulard.

Found in:

Fermented foods.

What does this microbe do?

It is antimicrobial and has antitoxin effects, and supports the trophic action on the intestinal mucosa. A regulator of the immune response, it reduces pro-inflammatory responses and produces mucosal anti-inflammatory signalling effects.


Diarrhea (rotaviral), IBS, anxiety, IBS, ulcerative colitis, Crohn’s disease, Lyme disease, acne, H.pylori, urinary tract infections.


Best before food. Adult: 10-20ml daily. Children: 5-15ml daily

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