Jarrow Formulas Saccharomyces Boulardii + MOS

47 people found this helpful

Excellent! I give one capsule on an empty stomach to my 3.5-year-old child. He has suffered from constant rashes on his face for the last year and a half, trying various intestinal bacteria, but this has never worked before. After two weeks of this treatment, any spots and pimples on his face had disappeared! He even had a bit of honey; previously, after half a teaspoon, the blemishes and pimples would reappear. I followed a schedule of two weeks' intake followed by a two-week break.

Cholecystitis details

Immediate relief noted

35 people found this helpful

In every first aid kit. I bought it on my mother-in-law's advice for potential poisoning and illness. I have been taking it myself on an empty stomach in the mornings and have noticed no issues so far. Recently, I gave half of the package to my aunt who had her gallbladder removed and was suffering from worsened gastritis and pain after taking antibiotics. She started taking two capsules each morning and evening, and relief came almost immediately. Saccharomyces made a significant difference, and she did not use any other similar medications. We will order more.

Knee Pain details

Pain relief confirmed

169 people found this helpful

Saccharomycetes Boulardii is often regarded as the top probiotic globally. While not a true probiotic, this yeast-like fungus interacts with intestinal flora. It effectively combats pathogens and assists in treating acute intestinal infections when antibiotics are unsuitable. I take it twice daily with meals or on an empty stomach for a month, and after two months, I can repeat the course. Following the first course, my stomach pain vanished, leading to a sense of wellbeing.

Menopause details

I gifted it to an acquaintance suffering from menopause, and he reported that his insomnia and sudden fever episodes were greatly alleviated. The ingredients are safe and trustworthy. I am delighted to have purchased a high-quality supplement.

Nausea details

Saccharomyces boulardii alleviates nausea

Based on 15 Researches

Cindoruk M, Erkan G, Karakan T, Dursun A, Unal S. Efficacy and safety of Saccharomyces boulardii in the 14-day triple anti-Helicobacter pylori therapy: a prospective randomized placebo-controlled double-blind study. Helicobacter. 2007;12:309.

We investigated whether Saccharomyces boulardii could alleviate nausea and other discomforts during a 14-day treatment for Helicobacter pylori. In our study with 124 patients, half received S. boulardii while the other half received a placebo.

Participants reported improvements in gastrointestinal symptoms, such as diarrhea and epigastric discomfort. However, while S. boulardii helped with treatment tolerability and post-treatment nausea, it did not significantly enhance the overall success rate of eradicating H. pylori.

Nausea management

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1 people found this helpful

A must-have for dealing with diarrhoea, nausea, and stomachaches—just take one and forget the unpleasant moments.

Updated: Mar 2026

Thrush details

Effective thrush relief

418 people found this helpful

The pills recommended by my gynaecologist worked wonders! After drinking them for 2-3 months, I can forget about thrush for a long time. I'm so tired of this issue; the treatments with suppositories only lasted a month at most. The doctor indicated that this female issue is linked to intestinal flora. I took the capsules, and they've been magical! My stomach felt comfortable for ages, and other gastrointestinal problems vanished while I was consuming them. Now, everything is in order, and I haven't taken them for 3 months. My skin has cleared up too! I'm planning to take them twice a year for two months each time.

Positive treatment effect

Atrial Septal Defect details

2 people found this helpful

An effective remedy for clostridia; I bought it for a child with an atrial septal defect. At first, the supplement seemed unsuitable as the child became aggressive and self-stimulation increased, but the gastroenterologist advised waiting a couple of days. Eventually, after a few days, even sleep returned to normal! I attribute the earlier symptoms to the reduction of pathogens, which can be eliminated using common sorbents. Overall, the medication is effective!

263 people found this helpful

Back Pain details

Among many things I've tried, S. boulardii stood out as it helps with gut inflammation. My new functional medicine doctor suggested I focus on this one probiotic, and after eliminating poor quality supplements, my gut pain is gone, along with other digestive issues. This approach proved successful after many months of struggle.

Remarkable remission effect

Crohn details

53 people found this helpful

I would give this product ten stars if I could. My husband has severe Crohn's disease and has suffered tremendously over the years. His doctor told him the next step would be hospice. He's terminal. This product has caused the disease to go into remission. My husband is doing much better with this formula. It's astonishing!!

Diarrhoea details

Saccharomyces boulardii reduces diarrhoea risk

Based on 16 Researches

Szajewska H, Kołodziej M. Systematic review with meta-analysis: Saccharomyces boulardii in the prevention of antibiotic-associated diarrhoea. Aliment Pharmacol Ther. 2015;42:793. doi:10.1111/apt.13344

We dove into the effectiveness of saccharomyces boulardii in preventing antibiotic-associated diarrhoea through a meta-analysis of 21 randomized controlled trials involving nearly 4,800 participants.

Our findings showed that this probiotic significantly reduced the incidence of diarrhoea from 18.7% to 8.5%. Notably, in children, the risk dropped from 20.9% to 8.8%, while in adults, it decreased from 17.4% to 8.2%.

While S. boulardii also showed some benefit against Clostridium difficile-associated diarrhoea, this effect was primarily noted in children. Overall, we confirmed that saccharomyces boulardii offers a viable preventive measure against diarrhoea linked to antibiotic treatments.

No diarrhoea reported

Most Useful Review

I experienced no diarrhoea after taking this.

Updated: Mar 2026

Eczema details

27 people found this helpful

Excellent! My husband takes this probiotic for his eczema, and it has greatly benefited him. Alongside it, he consumes a prebiotic and blackcurrant seed oil, which also helps. The quantity and quality of the products used are impressive. 👍

25 people found this helpful

Leg Cramps details

WOW!! This product is incredible! I’ve dealt with persistent diarrhoea for ten years, trying every diet and treatment possible, but nothing worked until I found this. I am now diarrhoea-free! Amazing! I am forever grateful.

Pneumonia details

S. boulardii reduces CDI risk

Based on 4 Researches

Wombwell E. Saccharomyces boulardii prophylaxis for targeted antibiotics and infectious indications to reduce healthcare facility-onset Clostridioides difficile infection. Microbes Infect. 2023;25:105041. doi:10.1016/j.micinf.2022.105041

We examined whether Saccharomyces boulardii can help lower the risk of Clostridioides difficile infection (HO-CDI) in patients receiving antibiotics, particularly for pneumonia. Using a retrospective matched-cohort study, we compared patients on high-risk antibiotics who received S. boulardii to those who didn’t.

Our findings showed a significant 57% reduction in HO-CDI risk for pneumonia patients on S. boulardii, and a remarkable 76% reduction for those on ceftriaxone. This suggests that S. boulardii could be a valuable prophylaxis option in specific hospital settings.

Intestinal recovery

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2 people found this helpful

I really like the product. My father fell ill with COVID-19 and developed pneumonia, requiring multiple antibiotics. His condition was severe, resulting in terrible diarrhoea. Upon the advice of an infectious disease doctor, he took acidophilus alongside Saccharomyces Boulardii. Within 10 days, his intestines fully recovered. I will definitely order more as there are no alternatives in pharmacies. HIGHLY RECOMMEND!!!!

Updated: Mar 2026

Abscess details

I purchased this for my son, who is 17 and suffers from extensive acne. He takes one capsule before bed, and I have noticed a significant improvement in his skin! The large abscesses have vanished.

Adenoiditis details

Child recovered quickly

Fine, I gave it to a child with the flu alongside other supplements. I can't determine which worked best, but the main achievement was that the child recovered in 10 days. They had a high fever, a runny nose, a terrible cough, and sore throat. I hadn't seen such severe illness in a while. The doctor prescribed medicines, yet I only provided supplements.

Autoimmune Disorder details

Probiotic improves MS symptoms

Based on 10 Researches

Asghari KM, Dolatkhah N, Ayromlou H, Mirnasiri F, Dadfar T, et al. The effect of probiotic supplementation on the clinical and para-clinical findings of multiple sclerosis: a randomized clinical trial. Sci Rep. 2023;13:18577. doi:10.1038/s41598-023-46047-6

We focused on the effects of the probiotic Saccharomyces boulardii on Multiple Sclerosis (MS) patients, comparing its benefits to a placebo over four months.

Notably, we found that Saccharomyces boulardii significantly lowered inflammatory markers and improved overall antioxidant capacity. Participants also reported less pain and fatigue, alongside enhancements in their quality of life compared to those receiving the placebo.

This suggests that incorporating Saccharomyces boulardii might help alleviate some symptoms related to MS, offering a beneficial avenue for symptom management.

Life-changing

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5 people found this helpful

After over a decade of stomach issues, doctors failed to determine the cause until I discovered these natural pills from a friend. They changed my life, allowing me to enjoy eating out without the anxiety of sudden bathroom needs. I am grateful for this treatment after living in discomfort for so long due to my autoimmune disorder.

Updated: Mar 2026

Bone Pain details

β-Glucans improve bone health

Silva Vde O, Lobato RV, Andrade EF, de Macedo CG, Napimoga JT, et al. β-Glucans (Saccharomyces cereviseae) Reduce Glucose Levels and Attenuate Alveolar Bone Loss in Diabetic Rats with Periodontal Disease. PLoS One. 2015;10:e0134742. doi:10.1371/journal.pone.0134742

We investigated how β-glucans derived from Saccharomyces cerevisiae can impact bone loss and metabolic health. In our study, diabetic rats underwent a treatment regimen of β-glucans for 28 days.

We observed that these glucans significantly reduced the loss of alveolar bone in both diabetic and non-diabetic groups, as well as lowered blood glucose and triglyceride levels. Additionally, they appeared to improve metabolic markers related to inflammation and bone health.

Overall, β-glucans show promise for enhancing both metabolic and periodontal health in diabetic conditions.

Effective for pain

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After trying different brands, I've found this one superior. Although pricier, one tablet each morning alleviates my bone pain effectively, negating the need for additional doses. I'll continue with this brand.

Updated: Apr 2025

Ear Infection details

89 people found this helpful

After a loved one faced severe intestinal inflammation and probable C. Diff, we sought treatment at a local nutrition store. They recommended several supportive treatments, including Saccharomyces Boulardii. Within 48 hours, my loved one’s condition improved dramatically, showing quicker recovery and increased wellbeing.

17 people found this helpful

Gastroenteritis details

I had c. Diff that wouldn't improve with prescription drugs, and this product restored my gut. I experienced severe gastroenteritis during Easter and have not felt right since. I've been taking Culturelle and lots of yoghurt, but this has been what I needed. I had used this about seven years ago, and it normalised my gut health then. Its ingredients are similar to those in the very expensive Florastar, so I'm thrilled with the effectiveness and affordability of the Jason brand.

Gastroesophageal Reflux Disease details

When S. boulardii is appropriate, it's the only one you need. Of all I've tried to aid myself, this stands out. I read a research article stating its efficacy in reducing gut inflammation, which motivated me to include it. My new functional medicine doctor advised keeping S. boulardii while eliminating other supplements. I was astonished—more doesn’t equal merrier? With gut inflammation, S. boulardii proves essential to maximise benefits. It’s vital to accompany probiotics with quality fibre, with PGX being the best. After a few weeks of this new regimen, my gut pain vanished. My symptoms including Gastroesophageal Reflux Disease, gas, cramping, and bloating disappeared. Collagen from bone broth or supplements supports healing, and I must consume adequate protein to promote recovery. After four months, most digestive difficulties are gone, though I still manage my dietary fibre intake carefully.

Heart Disease details

Improves heart health

4 people found this helpful

Medicine recognises the beneficial properties of saccharomycetes in diabetes and obesity, rapidly altering intestinal microbiota. This, in turn, reduces body fat and enhances liver steatosis. The prophylactic use of S. Boulardii also diminishes the risk of coronary heart disease. The capsules are of high quality, large, and easy to swallow, making them one of my preferred supplements.

Facilitates gluten consumption

Celiac details

8 people found this helpful

Great stuff! It allows me to enjoy bread and ice cream, which I greatly missed since becoming intolerant to gluten and lactose.

Boulardi is an outstanding drug; with my type 2 diabetes, my blood sugar has decreased significantly, my health has improved, and bowel function has normalised. I highly recommend it!

Diabetes details

Diarrhea details

Probiotic effectively reduces diarrhea

Based on 28 Researches

Pal BB, Bandagi RV, Pebbili KK, Rathod R, Kotak B, et al. Effectiveness of Saccharomyces boulardii CNCM I-745 in Adult Indian Patients with Diarrhoea: A Real-world, Multicentre, Retrospective, Comparative Study. Drugs Real World Outcomes. 2024;11:309. doi:10.1007/s40801-024-00424-3

We investigated the effectiveness of the probiotic Saccharomyces boulardii CNCM I-745 in real-world settings for treating diarrhea. In a study involving over 30,000 patients, those treated with S. boulardii had a notable success rate of 77.8% in resolving their diarrhea, compared to just 15.8% in the control group.

This study showed that S. boulardii worked well even when patients were on antibiotics, outperforming traditional anti-diarrheal treatments.

Overall, S. boulardii demonstrates significant promise in managing diarrhea effectively.

Gut healing achieved

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263 people found this helpful

When S. boulardii is the right choice, it's your best option. After struggling with gut inflammation, I introduced this probiotic which has been significant in my healing process. After a few weeks, my diarrhea and gut pain vanished, and my overall digestive health improved significantly.

Updated: Mar 2026

Salmonella details

S. boulardii reduces Salmonella liver injury

Based on 23 Researches

Wu D, Teng D, Wang X, Dai C, Wang J. Saccharomyces boulardii prevention of the hepatic injury induced by Salmonella Enteritidis infection. Can J Microbiol. 2014;60:681. doi:10.1139/cjm-2014-0259

We examined how Saccharomyces boulardii offers protection against Salmonella Enteritidis, a common foodborne pathogen that can cause severe liver damage. Using a mouse model, we found that pretreatment with S. boulardii significantly reduced the translocation of Salmonella to the liver by an impressive 96%, while also alleviating associated liver tissue damage after infection.

These results suggest that S. boulardii is quite effective in combating the harmful effects of Salmonella Enteritidis, making it a promising option for prevention of liver injury in such infections.

Effective for Salmonella

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54 people found this helpful

Our companion on all trips, Bulardi's saccharomycetes are identical to the pharmacy antidiarrheal drug Enterol. I cannot travel without it! For adults, we use it during trips or at the onset of gastrointestinal issues; it has always worked well. For children experiencing vomiting, I administer it alongside sorbents (not concurrently) and probiotics. If vomiting occurs shortly after taking the capsule and I notice that the stomach isn't functioning well, I give the medication again. Generally, normalisation happens within a day. The drug effectively counters Clostridium difficile, Salmonella, and other pathogens, enhancing intestinal enzyme function and having a notable antitoxic effect. Moreover, Bulardi's saccharomycetes are resistant to gastric juices and antibiotics, allowing simultaneous treatment. They must be taken consistently to achieve therapeutic benefits.

Updated: Mar 2026

Cardiovascular Disease details

Cardiovascular benefits of yeast compound

Based on 7 Researches

Bezerra LS, Magnani M, Pimentel TC, de Oliveira JCPL, Freire FMS, et al. Yeast carboxymethyl-glucan improves endothelial function and inhibits platelet aggregation in spontaneously hypertensive rats. Food Funct. 2022;13:5406. doi:10.1039/d1fo03492h

We explored how carboxymethyl-glucan, a compound from yeast, impacts heart health in hypertensive rats. Rats were divided into groups, with some receiving carboxymethyl-glucan for four weeks while others received a placebo.

Results showed that carboxymethyl-glucan improved vascular function and decreased platelet aggregation, especially at a high dose. However, it didn’t lower levels of harmful molecules called reactive oxygen species, indicating it may not fully protect against all cardiovascular issues.

Overall, this compound shows promise in helping to manage hypertension and related complications.

Remission for Crohn's

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1 people found this helpful

I really like this probiotic and would give it ten stars if possible. My husband has severe Crohn's Disease, and his doctor said hospice was the next step. This product has put his disease into remission, and he is significantly better with this formula. It's truly amazing!

Updated: Apr 2025

Cold details

16 people found this helpful

I started taking this probiotic, and my doctor is astonished that I have no symptoms anymore. This has been a miracle product for me. I contracted C. diff, which made my life hell. I had it after a lengthy antibiotic treatment for chronic sinusitis. Following my hospitalisation for C. diff, I started this probiotic. I’m amazed that I no longer have any symptoms! Even after being released, I was told I would still experience symptoms, but after only one week on this probiotic, they completely vanished. After a month, all symptoms were gone; it feels as if I never even had that dreadful disease. Additionally, it's helped me remain incredibly healthy throughout winter months unlike the past when colds and sinus infections plagued me.

7 people found this helpful

Depression details

Great non-GMO, vegan product that I use to combat mould toxicity. I got this product on a recommendation for mould exposure. I particularly like that it's non-GMO and vegan. So far, I've noticed improvement in my depression, which is a symptom of mould exposure. My stomach also feels better. It’s early days, as I’ve only been taking it for a few weeks, but I believe it’s working for me.

Indigestion details

Stops symptoms quickly

3 people found this helpful

The first time I tried saccharomycetes for indigestion after seafood, the symptoms ceased within half an hour. My whole family now takes it on our travels. It aids with poisoning, indigestion, and food intolerances, particularly legumes. I also use it as an immunomodulator for viral infections. I've even introduced this product to my friends. It's become a bestseller for our family!

Obesity details

Improves liver health

238 people found this helpful

Bacteria Saccharomyces Boulardii, a unique biological probiotic, is renowned for its beneficial properties in diabetes and obesity. This yeast effectively alters the intestinal microbiota, leading to reduced body fat and improved liver steatosis. It is also used to treat constipation and diarrhoea, as well as fungal infections.

Acne details

Saccharomyces improves acne treatment

Likely Very Effective

Weber G, Adamczyk A, Freytag S. [Treatment of acne with a yeast preparation]. Fortschr Med. 1989;107:563.

We explored how Saccharomyces cerevisiae Hansen CBS 5926, also known as Perenterol, affects acne in a randomized, double-blind study with 139 participants.

The study revealed impressive results: approximately 74.3% of those treated reported good or very good outcomes, compared to just 21.7% in the placebo group.

More than 80% of patients who received the yeast preparation saw substantial improvement or healing, while only 26% in the placebo group experienced similar results.

Notably, there were no significant side effects reported in either group, making this treatment an increasingly popular option for those battling acne.

Diarrhoea relief

Most Useful Review

31 people found this helpful

My husband experienced diarrhoea during his illness. Boulardi helped him recover quickly and I took it to combat my acne and normalise my digestion. I was very pleased with the results.

Updated: Mar 2026

Autism details

My son with autism takes this, and it has improved his speech. Thank you, iHerb!

Candidiasis details

Probiotic shows promise against candidiasis

Based on 7 Researches

Murzyn A, Krasowska A, Augustyniak D, Majkowska-Skrobek G, Łukaszewicz M, et al. The effect of Saccharomyces boulardii on Candida albicans-infected human intestinal cell lines Caco-2 and Intestin 407. FEMS Microbiol Lett. 2010;310:17. doi:10.1111/j.1574-6968.2010.02037.x

We investigated the role of Saccharomyces boulardii, a helpful probiotic, in combating Candida albicans, a troublesome pathogen for those with weakened immune systems.

By examining the effects on specific human intestinal cell lines, we found that both S. boulardii and its culture extract notably reduced C. albicans' ability to adhere to these cells.

Additionally, the extract lowered the production of harmful inflammatory markers, suggesting it may help manage inflammation linked to these infections. Overall, our findings highlight the potential of S. boulardii as a supportive treatment against candidiasis.

Effective for thrush

Most Useful Review

418 people found this helpful

This tool was recommended by my gynecologist. She mentioned that after taking them for 2-3 months, one can forget about thrush for an extended period. I was weary of this issue; the effect of suppositories and other medications lasted only a month before the problem returned. The doctor indicated that this female issue originates from the intestines and its flora. After using it, I felt great comfort in my tummy, and my gastrointestinal issues vanished during treatment. Now everything is alright (it’s been 3 months since I last took it), and my skin looks clean and smooth. I plan to take them twice a year for two months. I will definitely order again.

Updated: Mar 2026

Food Poisoning details

Saccharomyces boulardii reduces liver injury

Based on 10 Researches

Wu D, Teng D, Wang X, Dai C, Wang J. Saccharomyces boulardii prevention of the hepatic injury induced by Salmonella Enteritidis infection. Can J Microbiol. 2014;60:681. doi:10.1139/cjm-2014-0259

We explored how Saccharomyces boulardii might help prevent liver damage caused by Salmonella Enteritidis, a common foodborne pathogen. Using a mouse model, we noticed that pretreatment with S. boulardii significantly reduced the translocation of Salmonella to the liver by 96%.

Additionally, this treatment decreased inflammation and lesions associated with liver injury. These findings suggest that S. boulardii can be a powerful ally in protecting our livers against food poisoning caused by Salmonella Enteritidis.

Quick recovery aid

Most Useful Review

145 people found this helpful

Saccharomyces boulardii is a unique probiotic yeast that survives stomach acid. They restore gut balance during medication or travel disruptions and are excellent for food poisoning as they help eliminate pathogens. I always have them on hand after antibiotics for a swift recovery.

Updated: Mar 2026

Hypothyroidism details

Brewer's yeast mitigates adrenal atrophy

Dehghani F, Zabolizadeh J, Noorafshan A, Panjehshahin MR, Karbalay-Doust S. Protective effect of Brewer's yeast on methimazole-induced-adrenal atrophy (a stereological study). Tokai J Exp Clin Med. 2010;35:34.

We explored the protective role of brewer's yeast in combating the harmful effects of methimazole-induced hypothyroidism. In a study involving 48 rats, we divided them into control and experimental groups to assess the impact of methimazole and brewer's yeast on adrenal glands.

Our findings showed that methimazole led to reduced adrenal size and lower cortisol levels. However, when brewer's yeast was administered alongside methimazole, it significantly lessened these adverse effects, suggesting a natural remedy might help safeguard adrenal health during hypothyroidism treatment.

Reduced insulin level

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1 people found this helpful

This berberine was prescribed by my endocrinologist. I had hypothyroidism with insulin resistance. After six months of taking omega-3, D3, magnesium, MCT oil, folic acid, and having 1-2 meals a day, my insulin level decreased from 31.1 to 15.2. While I aim for further reduction, I believe this is a good result. Additionally, I've lost weight through swimming and walking 10,000 steps daily. Importantly, all my thyroid hormones are now normal!

Updated: Mar 2026

Psoriasis details

Symptoms greatly reduced

29 people found this helpful

Two summers ago, I struggled with multiple symptoms, including psoriasis on my palms and painful cracked corners of my mouth. After considerable research, I self-diagnosed with leaky gut syndrome. Since taking this product while avoiding yeast, my symptoms have nearly vanished. Even at double the recommended dosage, it has been significantly beneficial. This isn’t a cure, but it’s undoubtedly helpful, and I’ll keep taking it as needed.

Ulcer details

Saccharomyces boulardii shows ulcer benefits

Based on 17 Researches

Gao H, Li Y, Sun J, Xu H, Wang M, et al. Ameliorates Dextran Sulfate Sodium-Induced Ulcerative Colitis in Mice by Regulating NF-B and Nrf2 Signaling Pathways. Oxid Med Cell Longev. 2021;2021:1622375. doi:10.1155/2021/1622375

We explored how the probiotic yeast, Saccharomyces boulardii, impacts ulcerative colitis in mice. Through a careful setup, C57BL/6 mice received the treatment for three weeks and were later exposed to a harmful substance to induce the condition.

The results were promising; we observed that Saccharomyces boulardii significantly improved various symptoms. It helped prevent weight loss, diarrhea, and inflammation while strengthening the intestinal barrier. Furthermore, it demonstrated an ability to counteract oxidative damage effectively.

However, we also noted that while these findings are positive, further research is needed to fully understand the comprehensive benefits of this treatment in humans.

Diet and probiotics combo

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20 people found this helpful

Just gentle diet with Saccharomyces boulardii has transformed my life. Having ulcerative colitis for about 8 years, this probiotic, coupled with a careful diet, has brought my symptoms under control. I meticulously adjusted my intake, and my symptoms improved significantly. I believe this product has been essential in protecting my colon from ulceration.

Updated: Mar 2026

Allergies details

Saccharomyces boulardii helps atopic dermatitis

Based on 7 Researches

Buttar PA, Mazhar MU, Khan JZ, Jamil M, Abid M, et al. Saccharomyces boulardii (CNCM I-745) ameliorates Ovalbumin-induced atopic dermatitis by modulating the NF-κB signaling in skin and colon. Arch Dermatol Res. 2025;317:500. doi:10.1007/s00403-025-04057-6

We examined how Saccharomyces boulardii might help with atopic dermatitis (AD), a challenging allergic condition. In a study with mice, S. boulardii was given either before or during the induction of AD-like symptoms.

This probiotic treatment showed promising results, reducing inflammation, improving skin and colon health, and lowering certain harmful blood markers. The study highlighted how S. boulardii can modulate inflammatory responses, suggesting it might be a useful support therapy for managing AD symptoms.

Permanent change

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32 people found this helpful

My condition has changed permanently for the better. I previously suffered from food allergies and IBS after a trip to Mexico. Despite numerous treatments, nothing worked long-term until being on Metagenics Bactin AR/BR for SIBO. This eliminated my food allergies, and following that, this product made a tremendous difference.

Updated: Mar 2026

Anxiety details

Sake yeast shows potential for anxiety

Based on 3 Researches

Bozorgi H, Rashidy-Pour A, Moradikor N, Zamani M, Motaghi E. Neurobehavioral protective effects of Japanese sake yeast supplement against chronic stress-induced anxiety and depression-like symptoms in mice: Possible role of central adenosine receptors. Psychopharmacology (Berl). 2024;241:401. doi:10.1007/s00213-023-06496-3

We explored the potential benefits of Japanese sake yeast on anxiety and depression in mice subjected to stress. Over a week, we treated the mice with different doses of sake yeast and assessed its effects on anxiety, mood, and sleep.

Our findings indicated that the yeast improved anxiety and antidepressant-like behaviors, particularly at higher doses. It also increased sleep duration and influenced certain brain levels related to mood. However, the overall results suggest that while sake yeast shows promise, it may not significantly alter all biological markers associated with stress.

Alleviated anxiety

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29 people found this helpful

This product has been life-changing for me. After suffering from Colitis at a young age and later developing C. Diff, I resigned myself to frequent bathroom trips that caused me severe anxiety, preventing me from dining out or socialising. After extensive research on these conditions, I stumbled upon reviews praising S. Boulardii. I integrated it into my longstanding probiotic regimen, and within days, I noticed a major difference. No longer do I need to worry about finding the nearest restroom, and my anxiety has almost disappeared. After enduring years of gastrointestinal woes, I can honestly claim this is the best thing I’ve ever taken, even surpassing prescribed medications.

Updated: Mar 2026

Gastritis details

Probiotics alleviate gastritis symptoms

Based on 4 Researches

USERS' SCORE

Good

Based on 11 Reviews

Minoretti P, Liaño Riera M, Santiago Sáez A, Gómez Serrano M, García Martín Á. Probiotic Supplementation With Saccharomyces boulardii and Enterococcus faecium Improves Gastric Pain and Bloating in Airline Pilots With Chronic Non-atrophic Gastritis: An Open-Label Study. Cureus. 2024;16:e52502. doi:10.7759/cureus.52502

We investigated the effects of Saccharomyces boulardii and Enterococcus faecium on gastritis symptoms in airline pilots over four weeks. Participants were divided into three groups: two received varying doses of probiotics, while one served as a control group. Our findings revealed that those taking probiotics experienced notable relief from gastric pain and bloating compared to the control group. While both doses were effective, the high-dose group showed a significant increase in certain gastric enzymes that suggest potential long-term benefits. Overall, probiotics appear promising for managing gastritis-related discomfort.

Excellent support

Most Useful Review

1 people found this helpful

I bought this for my daughter, who has a predisposition to gastritis. After completing the course, her symptoms improved significantly, making it an excellent supportive treatment tool.

Updated: Mar 2026

Swollen Lymph Nodes details

Symptomatic relief achieved

5 people found this helpful

This product worked wonders! My husband and I both took it for 15 days, and we experienced relief from bubbling and swelling. We plan to buy a larger package for ongoing support.

Yeast Infection details

S. boulardii lowers Candida levels

Based on 4 Researches

Jawhara S, Poulain D. Saccharomyces boulardii decreases inflammation and intestinal colonization by Candida albicans in a mouse model of chemically-induced colitis. Med Mycol. 2007;45:691.

We examined how Saccharomyces boulardii affects inflammation and colonization by Candida albicans in a mouse model of chemically-induced colitis. Mice were treated with either S. boulardii or C. albicans, and results showed that S. boulardii significantly reduced the levels of C. albicans and inflammation markers compared to controls.

Specifically, the presence of S. boulardii led to fewer yeast colonies and less severe inflammation, as seen in lower clinical scores. The study highlights the potential of S. boulardii as a promising treatment to combat yeast infections.

7.5

Symptoms nearly gone

Most Useful Review

29 people found this helpful

I had a cluster of symptoms that I couldn't get rid of - psoriasis, painful cracks in my mouth, vaginal problems and bloating. After researching, I self-diagnosed with leaky gut, linked to a yeast infection in my intestine. Upon taking this product, my symptoms have nearly disappeared. I take twice the normal dosage, helping more than indicated. When I run out, my symptoms return. It's not a cure, but it's very helpful.

Updated: Mar 2026

Bacterial Infection details

Strong immunobiotic effect

30 people found this helpful

Boulardi saccharomycetes are non-pathogenic yeasts resistant to most antibiotics, inhibiting the growth of pathogenic microorganisms in the intestine. They are active against various infections, including bacterial infections and fungi, and can be used during antibiotic courses to prevent gastrointestinal issues. They stimulate the production of antibodies and immune response. I have stayed loyal to this brand for its noticeable effects in combating pathogenic microflora after antibiotics.

Bloating details

CNCM I-3856 reduces bloating effectively

Based on 15 Researches

Cayzeele-Decherf A, Pélerin F, Leuillet S, Douillard B, Housez B, et al. CNCM I-3856 in irritable bowel syndrome: An individual subject meta-analysis. World J Gastroenterol. 2017;23:336. doi:10.3748/wjg.v23.i2.336

We analyzed data from two clinical trials involving 579 individuals with Irritable Bowel Syndrome (IBS) to determine how CNCM I-3856 affects symptoms like bloating.

Our findings revealed that during the second month of supplementation, participants experienced significant reductions in both abdominal pain and bloating—up to 14.9% compared to those taking a placebo.

While intestinal symptoms improved, there were no significant differences observed between groups at the end of treatment. However, stool consistency was notably better in those taking CNCM I-3856.

Bloating symptoms gone

Most Useful Review

263 people found this helpful

When S. boulardii is the right one, it's all you need. This probiotic stands out for gut inflammation. After my doctor reduced my supplements list, I noticed my bloating, gas, and GERD disappeared. Three weeks after eliminating junk probiotics and fibre, everything normalised.

Updated: Mar 2026

Flu details

12 people found this helpful

My doctor recommended this product after a severe bout with clostridium difficile colitis. I take it to manage my condition, ensuring the bad germs don't have time to make me unwell. Since I've been on this product, I haven't had a single sick day, or even a cold, in over 5 years. I recommend it to anyone tired of getting the flu or colds; it really works!

3 people found this helpful

Headache details

Acidophilus gives me no headache, whereas Saccharomyces Boulardii seems to trigger headaches for me. I selected this flora for its absence of headaches and need for probiotic support. Five stars, as it isn’t freeze-dried.

Irritable Bowel Syndrome details

Saccharomyces cerevisiae improves IBS symptoms

Based on 18 Researches

Siyal M, Abbas Z, Amir MR, Qadeer MA. Saccharomyces cerevisiae for abdominal pain and discomfort in irritable bowel syndrome patients. Pak J Med Sci. 2024;40:492. doi:10.12669/pjms.40.3.8349

We explored how Saccharomyces cerevisiae affects patients with irritable bowel syndrome (IBS). In a study involving thirty participants, we administered 500 mg capsules of this yeast twice daily for four weeks. Weekly evaluations showed significant improvements in abdominal pain and general quality of life, with notable reductions in pain scores and enhancements in various aspects of daily living. This suggests Saccharomyces cerevisiae could be a valuable treatment option for alleviating IBS symptoms.

7.5

Reversed symptoms

Most Useful Review

65 people found this helpful

Seven years ago, I had an ulceration in my lower colon, resulting in hospitalisation and mega doses of antibiotics, yet I battled gastrointestinal issues for years. After much research, I discovered my issues were linked to iron overload and an entirely devastated gut flora. After donating blood and starting Jarrow Formulas Saccharomyces Boulardii alongside another high-quality probiotic, I can happily say my IBS symptoms have largely reversed. I recommend this approach if you’re having similar unresolved issues.

Updated: Mar 2026

Chronic Fatigue Syndrome details

Potential benefits of yeast supplements

Based on 2 Researches

Dotsenko VA, Mosiĭchuk LV, Paramonov AE. [Biologically active food additives for correction of the chronic fatigue syndrome]. Vopr Pitan. 2004;73:17.

We explored the impact of "Nagipol," a supplement made from beer yeasts, on chronic fatigue syndrome (CFS). Our clinical study indicated that "Nagipol" could improve the clinical status of CFS patients. It appears to help enhance cognitive functions and stabilize emotional symptoms while also normalizing certain blood parameters.

While these findings are promising, it’s important to note that further research is needed to fully confirm these benefits, especially regarding its role in diet therapy for individuals dealing with CFS.

Reduced fatigue

Most Useful Review

24 people found this helpful

Although I purchased a jacket, I felt my symptoms of leaky gut and allergies were prevalent. Despite trying various supplements, I opted for this one as my gut environment seemed poor. I noticed no sudden stomach drops, and my excessive appetite was suppressed. While I can't comment on long-term effects yet, I've felt less fatigued after a month of taking two tablets daily. I chose this probiotic due to its intriguing packaging, and it seems to have been the right decision.

Updated: Mar 2026

Heartburn details

230 people found this helpful

This drug has an extensive range of uses. It aids in detoxification, enhances food digestion, alleviates heartburn, and helps to restore the intestinal microflora.

Sleep Apnea details

Sleep improvement noted

S. Boulardii is a live yeast that resists antibiotics and digestive secretions, enhancing its concentration in the gastrointestinal tract. It aids the immune system and effectively alleviates acute diarrhoea in both adults and children. After two weeks, I feel better! My stomach bloating, gurgling and gas issues have resolved, and I no longer experience stomach pain. My sleep has returned to normal! I take two capsules before bed.

Constipation details