Yeast for Your Gut

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The Pure TheraPro Team

The Pure TheraPro Education Team is comprised of researchers from diverse backgrounds including nutrition, functional medicine, fitness, supplement formulation & food science. All articles have been reviewed for content, accuracy, and compliance by a holistic integrative nutritionist certified by an accredited institution.
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You’ve likely heard about probiotics and beneficial live bacteria helping support overall health, particularly digestive function. But did you know that there’s a yeast out there that’s good for you, too? Yes, a yeast!

We typically equate yeast with something bad, an invader that can get out of control and cause a variety of systemic issues, such as the case with candida albicans. But Saccharomyces boulardii is the friendly ghost of yeasts, providing multiple clinically studied benefits.

Even pharmaceutical companies have capitalized on the benefits of Saccharomyces boulardii with their gut flora prescription product, Florastor, marketed to neutralize bad bacteria and support various digestive issues.

Unlike probiotics, S. boulardii is transient, meaning that it does not colonize in the gut and intestines. Think of it as a renter, not a homeowner—it is merely passing through temporarily and doesn’t attach to the gut lining. Its benefits, however, are experienced via its movement through the digestive tract.

S. boulardii is like pouring Drain-O down a drain in that it destroys intestinal invaders such as bacteria, harmful yeast and parasites as well as reducing the toxic burden and inflammation these critters create in your system. Pathogens feed off of you by adhering to your intestinal walls, but S. boulardii ensures they don’t attach. This beneficial yeast also helps promote healthy intestinal enzymatic function that supports improved digestion and nutrient and mineral absorption.

Does this sound too good to be true? Wait—there’s more!

If you’ve ever traveled to a foreign country and drank the water to only find yourself spending your vacation in the bathroom, Saccharomyces boulardii may be your saving grace. Clinical studies have demonstrated that S. boulardii decreases both the duration and frequency of diarrhea as well as reduces inflammation and stomach pain associated with acute diarrhea caused by pathogens, such as giardiasis. 


Children with diarrhea also benefit from taking Saccharomyces—and it’s safe for them to take it. Studies show its impact in annihilating common bacterial pathogens. S. boulardii reduced E. coli numbers in children. It also eradicated B. hominis infection as effectively as metronidazole, a prescription antibiotic used to treat parasites and bacterial infections. 

Sacharomyces boulardii can also be beneficial for those with other illnesses which stem from gut inflammation. Evidence has shown improvement in combatting systemic candida overgrowth, managing lactose intolerance, improving skin eruptions such as acne and psoriasis, treating chronic vaginal yeast infections and gut-inflammatory diseases such as IBS, Crohn’s and SIBO.

Even one round of antibiotics can negatively impact the gut microbiome for up to three years, destroying colonies of beneficial bacteria that are instrumental to immune function and overall health, protecting our systems from harmful invaders. Typical side effects of microbiome disruption caused by antibiotics include diarrhea and stomach pain. Others may experience thrush or yeast infections. Studies support that Saccharomyces boulardii can be taken at the same time as antibiotics and help restore and protect your gut microbiome as well as eliminate these uncomfortable side effects.

Have a stomach ulcer caused by long-term ibuprofen abuse? S. boulardii has been shown to reduce the number of gastic ulcers and support the repair of the gut mucosa.

S. boulardii is safe for healthy populations, but if you have a suppressed immune system, such as in the case of currently receiving chemotherapy or have a chronic illness that severely suppresses immune function, you should consult with a healthcare practitioner prior to beginning S. boulardii supplementation.

S. boulardii may be taken with or without food at any time of day. Dosing is dependent on the symptoms/health issues you are trying to manage.

As microorganisms and other pathogens are destroyed by Sacharomyces boulardii supplementation, they release toxins into the system which may initially cause detox symptoms. These are actually signs that it’s working, however, symptoms can be unpleasant. Detox symptoms, also known as “die off” or herx may include gas, bloating, headaches, fatigue, skin rashes, joint pain and an overall feeling of un-wellness. The good news is that these symptoms are temporary and can be easily managed by reducing the amount of Saccharomyces boulardii you are taking (going “low and slow” when you initially begin taking it) and drinking plenty of water to rid the body of toxins. Click here for more tips on surviving "die off." 

There are many Saccharomyces boulardii products on the market. It’s important to look for products that do not contain fillers, flow agents, excipients and other additional ingredients such as magnesium stearate and stearate acid which can irritate the gut and also interfere with the bioavailability.

We formulated our product with your needs in mind, that's why it is non-GMO, soy and gluten free, and unlike other brands, including Florastor, our formulation does not contain the additive magnesium stearate which is thought to potentially inhibit absorption of key nutrients and cause harmful side effects. 


Our Saccharomyces 10B is manufactured in the USA in a GMP-certified facility, for guaranteed quality and potency. STRAIN (DBVPG 6763) survives at body temperature – 98.6°F and at acid pH (one of the few yeasts that survive at this temperature)—surviving gastric acidity, resisting proteolysis and bile acids. This product is children and pet friendly (safe for toddlers over 1 years old).

To further the bioavailability, we utilize DRcaps, stomach-acid resistant capsules that are more effective than unprotected probiotic powder, regular capsules, and probiotic satchets.

Saccharomyces 10B delivers a min of 10 billion CFUs (colony-forming units) per daily serving to decrease the duration of diarrhea. It quickly achieves high concentrations in GI tract but clears within 3-5 days after discontinuance and is unaffected by antibiotics.

This product requires NO refrigeration and is stable at room temperature! This strain is obtained through a proprietary and patented process based on less aggressive drying at controlled temperature and lower vacuum. The result allows for preservation of whole yeast cells and stability of water content. These methods provide greater stability and delays the yeast aging process including cell deterioration and product contamination.

We guarantee the same potency of our products from manufacturing date until expiration date, provided they are stored as directed on the bottle. Our products have been third-party tested for stability in transit, including during summer months.