
- anti-toxin: it can stop toxins produced by infectious bacteria that make people ill.
- antibacterial: S. ...
- microbiome-friendly: this yeast supports normal gut bacteria that don't make you sick.
- anti-inflammatory: it helps prevent inflammation of the gut lining so it works better.
What is Saccharomyces boulardii used for?
In addition, the report indicates that Saccharomyces boulardii shows promise in the treatment of irritable bowel syndrome, acute adult diarrhea, and Crohn's disease. However, the authors note that more research is needed before Saccharomyces boulardii can be recommended for these conditions.
What are the side effects of Saccharomyces boulardii?
Caveats. Saccharomyces boulardii may cause certain side effects (such as gas and bloating). In addition, there's some concern that use of Saccharomyces boulardii may lead to fungemia (a condition marked by presence of fungi in the blood). Older adults, infants, immunocompromised or seriously ill patients, and people with colitis, cancer,...
Is Saccharomyces boulardii resistant to antibiotics?
This is not the case with Saccharomyces boulardii, which is resistant to stomach and bilic acids and immune to antibiotics. For this reason, the yeast microbe is often used in the treatment of antibiotic associated diarrhea (AAD).
How many people need to be treated with Saccharomyces boulardii?
About 12 people need to be treated with Saccharomyces boulardii for one patient who would otherwise remain infected to be cured. Taking Saccharomyces boulardii also helps prevent side effects such as diarrhea and nausea that occur with standard H. pylori treatment.

What does Saccharomyces boulardii treat?
Saccharomyces boulardii is most commonly used for treating and preventing diarrhea, including rotaviral diarrhea in children. It has some evidence of use for other types of diarrhea, acne, and a digestive tract infection that can lead to ulcers.
How does Saccharomyces boulardii work?
S. boulardii supports the protection of the intestinal lining from harmful bacteria. It promotes a healthy immune system and the continued function of the gastrointestinal barrier, as well as aids digestive enzymes for nutrient absorption and digestion.
What are the side effects of Saccharomyces boulardii?
Saccharomyces boulardii may cause side effects like gas and bloating. Those with a weakened immune system may have an increased risk of fungemia, or fungi in the blood. You should talk with your healthcare provider before taking it to make sure it's safe for you.
Does Saccharomyces boulardii reduce inflammation?
Background. Saccharomyces boulardii (S. boulardii), a well-studied probiotic, can be effective in inflammatory gastrointestinal diseases with diverse pathophysiology, such as Inflammatory Bowel Disease (IBD), and bacterially – or enterotoxin-mediated diarrhea and inflammation.
Does Saccharomyces boulardii colonize the gut?
boulardii can colonize the gut, competition with intestinal microbiome is limiting [18]. Indeed, both S. boulardii and other Saccharomyces strains were shown to be unable to remain attached to human and mouse epithelial cells, in vitro and in vivo, respectively [18].
Is Saccharomyces boulardii good for leaky gut?
boulardii was effective on intestinal permeability, as shown by the decrease in the lactulose/mannitol ratio (33.33%).
Does Saccharomyces boulardii cause weight gain?
Interestingly, these effects of S. boulardii on host metabolism were associated with local effects in the intestine. S. boulardii increased cecum weight and cecum tissue weight but also induced dramatic changes in the gut microbial composition at the phylum, family, and genus levels.
What foods contain S. boulardii?
cerevisiae and S. boulardii have been naturally isolated from an array of dairy products, including milk, yogurt, cream, dahi, cheese and kefir.
Does Saccharomyces boulardii cause Candida?
boulardii in the gut did not affect Candida GI colonization. These findings suggest that oral administration of S. boulardii induces a substantial but short term increase of this yeast in the intestinal lumen and administration of the probiotic does not prevent subsequent GI colonization by C. albicans.
Is Saccharomyces boulardii good for Candida?
Saccharomyces boulardii S. boulardii has been shown to inhibit populations of Candida and deter them from establishing in the intestines1, and it's also suggested that S. boulardii may help to reduce the risk of Candida yeasts translocating from the digestive tract2.
Can Saccharomyces boulardii cure C diff?
Clostridium difficile is a major cause of antibioticassociated diarrhea within the hospital setting. The yeast Saccharomyces boulardii has been found to have some effect in reducing the risk of C difficile infection (CDI); however, its role in preventive therapy has yet to be firmly established.
Does Saccharomyces boulardii help with weight loss?
In conclusion, the 60-day S. boulardii-SOD supplementation in obese subjects determined a significant weight loss with consequent decrease on fat mass, with preservation of fat free mass. The decrease of HOMA index and uric acid, produced additional benefits in obesity management.
What is the function of S. boulardii?
S. boulardii supports the protection of the intestinal lining from harmful bacteria. It promotes a healthy immune system and the continued function of the gastrointestinal barrier, as well as aids digestive enzymes for nutrient absorption and digestion.
Where can I get probiotics for S. boulardii?
boulardii. You can get probiotic bacteria from kefir, sauerkraut, yogurt, miso, kombucha, and kimchi.
Why is gut flora important?
The digestive system is the first line of defense for the immune system, so having healthy gut flora helps keep harmful bacteria from getting into our bloodstream.
Where was S. boulardii discovered?
When initially discovered, S. boulardii was found to be in the fruits mangosteen and lychee. In 1920, French scientist Henry Boulard noticed that natives of IndoChina were using these plants by drinking the tea made from the fruit skins.
Is it safe to take S. boulardii?
Otherwise, it is known to be safe for use in healthy individuals. Those with compromised immune systems should take caution and consult with a doctor before taking S. boulardii because, being a yeast, it comes from the fungus species and can lead to the presence of yeast in the blood.
Does S. boulardii travel outside the GI tract?
As S. boulardii is nonsystemic, it does not travel outside of the GI tract to the rest of the body. For more about gut and digestive health, check out our articles “ The Benefits of Digestive Enzymes ”, “ Gut Health – It All Starts with Gut Bacteria ”, and “ Gut Health, Probiotics, & The Effectiveness of the Mind ”.
How much Saccharomyces boulardii should I take daily?
In adults, an appropriate dosage of Saccharomyces boulardii is typically 5 billion CFU/g once or twice daily on an empty stomach, taken with a glass of water. It’s important to note you cannot dose by the size of the capsule because different brands have different bacteria per gram.
Where is Saccharomyces boulardii found?
Saccharomyces boulardii refers to a species of tropical yeast found in fruits endemic to Southeast Asia, South America, and parts of the Southeastern United States. French biologist Henri Boulard first extracted the product from the lychee fruit, a tropical tree indigenous to the Fuangdong and Fuijan provinces of China, ...
What is the name of the bacteria that lives in the digestive tract?
Blastocystis Hominis: Blastocystis hominis refers to a microorganism found in the human digestive tract that has caused some controversy in terms of its classification – researchers have argued for its status as a yeast, fungus, and ameboid, flagellated, or sporozoan protozoa.
How much water should I drink to ingest Saccharomyces boulardii?
To ingest S. boulardii as a powder, individuals will typically blend a packet’s worth into at least four ounces of water, juice, or milk, or into a serving of yogurt or applesauce.
What is yeast microbe used for?
For this reason, the yeast microbe is often used in the treatment of antibiotic associated diarrhea (AAD). It has also been clinically proven to alleviate traveler’s diarrhea and Helicobacter pylori infection, and is believed to be effective in the treatment of Irritable Bowel Syndrome and Crohn’s Disease.
When was S. boulardii first studied?
In a double-blind, randomized, placebo-controlled trial study published by the Journal of the American Medical Association in 1994 , researchers examined a combination treatment of S. boulardii alongside standard antibiotics in the treatment of adults hospitalized from C. diff infections.
Can antibiotics cause boulardii?
This kind of infection is often spread in health care facilities, and it can actually be caused by antibiotic use, specifically when an antibiotic kills too many healthy bacteria. There has been some research conducted addressing S. boulardii’s complementary role in the treatment of this illness.
How long does Saccharomyces boulardii last?
In adults, Saccharomyces boulardii has most often been taken by mouth in doses of 500-1000 mg (about 10-20 billion colony-forming units) daily for 4 weeks. In children, Saccharomyces boulardii has most often been taken by mouth in doses of 250-500 mg (about 5-10 billion colony-forming units) for up to 4 weeks.
What is the name of the bacteria that fights off bad bacteria?
Saccharomyces boulardii is called a "probiotic," a friendly organism that helps to fight off "bad" organisms that might cause diseases. Saccharomyces boulardii is different from other strains of Saccharomyces cerevisiae, commonly known as brewer's yeast and baker's yeast. Saccharomyces boulardii is most commonly used for treating ...
Does Saccharomyces boulardii prevent sepsis?
Giving Saccharomyces boulardii to preterm infants by mouth does not prevent sepsis. There is interest in using Saccharomyces boulardii for a number of other purposes, but there isn't enough reliable information to say whether it might be helpful. Side Effects.
Can Saccharomyces boulardii be used for diarrhea?
Saccharomyces boulardii is most commonly used for treating and preventing diarrhea, including rotaviral diarrhea in children. It has some evidence of use for other types of diarrhea, acne, and a digestive tract infection that can lead to ulcers. There is no good evidence to support using Saccharomyces boulardii for COVID-19.
Can you take Saccharomyces boulardii if you have a weakened immune system?
If you have a weakened immune system, talk with your healthcare provider before taking Saccharomyces boulardii. Yeast allergy: People with yeast allergy can be allergic to products containing Saccharomyces boulardii. Stay on the safe side and avoid these products.
Is Saccharomyces boulardii safe for breastfeeding?
Pregnancy and breast -feeding: There isn't enough reliable information to know if Saccharomyces boulardii is safe to use when pregnant or breast-feeding. Stay on the safe side and avoid use.
Does S. boulardii eradicate H. pylori?
S. boulardii had a positive effect on reducing the colonization of H. pylori in the human gastrointestinal system, but was not able to eradicate infection when used as single therapy [ 43 ].
Is S. boulardii safe for children?
S. bou lardii was also found to prevent traveler’s diarrhea, particularly in regions such as North Africa and in the Near-east [ 26 ]. S. boulardii is considered safe to administer to children who have acute diarrhea [ 27 ].
Is S. boulardii effective in preventing antibiotic-associated diarrhea?
Some studies report that S. boulardii is not effective in preventing the development of antibiotic-associated diarrhea [ 15, 16, 17, 18 ]. However, many studies do, in fact, show that S. boulardii is effective in reducing the risk of antibiotic-associated diarrhea in both children and adults [ 19, 20, 21, 22, 23, 24, 25 ].
Is S. boulardii good for IBD?
Evidence suggests that this probiotic may be beneficial for IBD and IBS patients [ 1 ].
Is boulardii a probiotic?
Safety. S. boulardii is a commonly recommended probiotic for a number of GI issues, especially diarrhea. This probio tic may also combat bacterial, parasite and fungal infections and support the human immune system.
Does boulardii help with amebiasis?
One study, however, found no benefit of S. boulardii in amebiasis [ 57 ].
What is Saccharomyces Boulardii?
Although it is considered a "probiotic," it is also a friendly yeast. Saccharomyces boulardii has been prescribed over the past 30 years for prophylaxis and treatment of diarrheal diseases caused by bacteria.
Can You Find Saccharomyces Boulardii in Food?
Saccharomyces Boulardii is a yeast that can be found in the skin of such exotic fruit as lychee and mangosteen. Historically, Southeast Asia natives used the peels of such fruit to make tea.
What Are Saccharomyces Boulardii Benefits?
S. boulardii, unlike other probiotics that colonize in the gut, do not normally inhabit the intestines. It is a transient yeast that passes through the intestines after ingestion.
Can Saccharomyces Boulardii Cause Constipation?
There are several other possible side effects that Saccharomyces Boulardii can cause (like bloating and gas). S. boulardii may lead to constipation if taken in large doses. In rare cases, it might cause infections such as fungemia.
Can Saccharomyces Boulardii Help Improve the Immune System?
S. boulardii is classified as a probiotic. It is a bacteria that beneficially stimulates the immune system and is capable of protecting the digestive system. It can support the immune system and aid in defending it against harmful bacteria.
How Do You Get Essential Biotic Saccharomyces Boulardii?
Because it doesn’t colonize, we need to replenish daily if we are treating a GI imbalance, yeast infection, or as a post-antibiotic treatment.
What are the nutrients that S. boulardii releases?
boulardii releases 1,500 different substances, including amino acids, nucleic acids, polyamines, antioxidants, flavonoids, B vitamins, minerals, and prebiotics such as beta -glucan, which enhance nutrition of the host and of the microbiota. [3], [22], [24], [26]
How long does it take for S. boulardii to reach peak concentration?
S. boulardii achieves peak concentrations in the intestine within 3 to 4 days, and maintains a high stable level as long as the yeast is taken daily in adequate amounts. [5], [9] The properties and benefits of S. boulardii have been reported in more than 600 peer-reviewed articles and over 90 clinical trials, which are highlighted here:
What is probiotic yeast?
Natural support for gut health from a probiotic yeast. Probiotics are “live microorganisms which, when administered in adequate amounts, confer a health benefit on the host.”. [1] You may be familiar with probiotic supplements that contain lactobacilli and/or bifidobacteria, which are families of beneficial bacteria. [2] .
What is the name of the yeast strain that Boulard isolated?
He isolated a yeast strain, later named S. boulardii, which was responsible for the effects. The strains of S. boulardii used in probiotic supplementation today are closely related to Boulard’s strain.
Does S. boulardii prevent C. difficile?
Fortunately, S. boulardii has its own, equally clever means of combating C. difficile. It prevents the accumulation of cholic acid, which puts the brakes on C. difficile growth. [44] . In this respect the action of S. boulardii is similar to that of fecal microbiota transplantation (a more extreme approach that replaces ...
Can you take S. boulardii for diarrhea?
International guidelines recommend the use of S. boulardii for children with gastroenteritis caused by rotavirus infection. [27], [28], [29] Supplementation with S. boulardii helps restore the normal microbiota, an effect that is correlated with a reduction in diarrhea. [30]
Does S. boulardii help the intestinal microbiome?
Supports a healthy microbiome: S. boulardii creates a favorable growth environment for the beneficial intestinal microbiota. [10], [11] It accelerates the recovery of the microbiota after antibiotics, [12], [13], [14] and increases the numbers of bacteria that produce butyrate, [15], [16] a short-chain fatty acid that reduces inflammation.
So, what is S. boulardii, and how does it work its magic?
S. boulardii is well-regarded as a beneficial microorganism effective against a number of bacteria-induced gastrointestinal diseases, including cholera. 1,2
How does S. boulardii soothe diarrhea and fight candida?
S. boulardii can promote good health by protecting against potential causes of diarrhea. This yeast acts against both Clostridium difficile and Escherichia coli, two key pathogens responsible for almost all cases of acute diarrhea. 8
Where S. boulardii really shines is in helping to prevent Candida albicans from sticking around and creating biofilms in the body
Researchers have found that S. boulardii inhibits the ability of C. albicans to move from the gastrointestinal tract to become a systemic infection involving the lymph nodes, blood, liver, kidneys, spleen, and other organs and tissues. 11

Possible Side Effects
- Saccharomyces boulardii may cause certain side effects such as gas and bloating. In addition, there's some concern that using Saccharomyces boulardii may lead to fungemia, particularly for those with compromised immune systems. Fungemia is a condition marked by the presence of f…
Dosage and Preparation
- There is not enough scientific data to provide a recommended dose of Saccharomyces boulardii. Various doses have been used when conducting scientific research. For example, in a study investigating traveler's diarrhea, 250 to 1000 mg of Saccharomyces boulardii was used daily for one month. In a study to see the effects on diarrhea in people taking antibiotics, a dose of 250 t…
Warnings and Precautions
- Like other supplements, there's still not enough research about the safety of using Saccharomyces boulardii. Older adults, infants, those with a weakened immune system, and seriously ill patients should avoid using Saccharomyces boulardii or use only after consulting with a healthcare provider. Saccharomyces boulardii hasn't been established as safe for pregnant wo…
How to Buy
- Saccharomyces boulardii supplements are widely available for purchase online. They are also sold in many natural-food stores, drugstores, and stores specializing in dietary supplements. Keep in mind that supplements haven't been tested for safety. Dietary supplements are largely unregulated.6In some cases, the product may deliver doses that differ from the specified amoun…
Summary
- Saccharomyces boulardii is a type of yeast that's available as a dietary supplement. In alternative medicine, it's used to help treat gastrointestinal conditions, including diarrhea. Research shows it may help with certain digestive illnesses, including traveler's diarrhea. However, more research is needed before it can be recommended as a treatment, particularly for chronic conditions like Cr…
Overview
Mechanism of action
Research
Clinical significance
Treatment
Types
Administration
Side effects
Risks
Safety
Contraindications
Medical uses
- Saccharomyces boulardii is known to be effective in the treatment and prevention of diarrheal illnesses. It is very unlikely to cause diarrhea; on the contrary, in sensitive individuals it may cause constipation.
Preparation
Uses
Prognosis