Overview

Saccharomyces boulardii (S. boulardii) is a type of probiotic ("friendly" organism). It's a yeast that is actually a strain of Saccharomyces cerevisiae.

"Friendly" organisms such as S. boulardii can help fight off "bad" organisms that might cause diseases. S. boulardii is different from other strains of S. cerevisiae, commonly known as brewer's yeast and baker's yeast.

People commonly use S. boulardii for treating and preventing diarrhea, including rotaviral diarrhea in children. It's also used for other types of diarrhea, acne, a digestive tract infection that can lead to ulcers, and many other conditions, but there is no good scientific evidence to support many of its other uses. There is also no good evidence to support using S. boulardii for COVID-19.

Don't confuse S. boulardii with other probiotics, or with fermented food products such as fermented milk, kefir, or yogurt. These are not the same.

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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

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© Therapeutic Research Faculty 2020.