Does taking a yeast probiotic exacerbate yeast infections?

Saccharomyces boulardii (SB) is a type of non-pathogenic yeast that is often used as a probiotic supplement.

It supports gut health by inhibiting the growth of harmful bacteria, enhancing the immune response and helping restore the natural balance of gut flora.

Some people mistakenly believe SB exacerbates yeast infections. But it does not as it

• Is non-pathogenic yeast, meaning it doesn't typically cause disease. It is different from Candida, the yeast most commonly associated with infections like thrush or yeast infections

• Does not colonise the mucosal surfaces of the body, passing through the digestive tract without attaching to the walls, meaning it doesn’t contribute to an overgrowth of yeast in the body

• Can actually prevent yeast infections by out-competing with harmful yeasts like Candida, preventing them from overgrowing and causing infections

Here are the other potential benefits of taking SB

• It reduces gut inflammation by modulating immune responses and decreasing pro-inflammatory cytokines

• Promotes the growth of beneficial bacteria in the gut, aiding in the balance of gut flora

• Is effective against antibiotic-associated diarrhoea, traveler’s diarrhoea, and Clostridium difficile infections

• Crowds out pathogenic yeasts like Candida, preventing and eradicating infections

• Acts as a binder, neutralising harmful bacteria, toxins and heavy metals

• Strengthens the intestinal barrier and supports overall immune health

• Aids in the absorption of nutrients by maintaining a healthy gut environment

• Repairs and protects the gut lining from damage due to infections or inflammation

• Inhibits the growth of pathogenic bacteria, reducing the risk of small intestinal bacterial overgrowth (SIBO)

While Saccharomyces boulardii is safe for most people, people with compromised immune systems, such as those with severe illnesses, central venous catheters, or those taking high doses, may be at risk for complications like fungaemia (a rare bloodstream infection)., but this is very uncommon.