'
SCIENTIFIC SCORE
Moderately Effective
Based on 5 Researches
8.4
USERS' SCORE
Excellent
Based on 23 Reviews
9
Supplement Facts
Serving Size: 1 Capsule
Amount Per Serving
%DV
Saccharomyces boulardii(an S. cerevisiae Strain)
250 mg(5 Billion CFU)
MOS Yeast Fraction(Min. 35% Manno-oligosaccharides [MOS]) (S. cerevisiae)
200 mg

Top Medical Research Studies

9
Yeast supplement reduces cold symptoms
Effects of a modified yeast supplement on cold/flu symptoms.
High relevance to cold treatment
We explored the effects of EpiCor, a dried Saccharomyces cerevisiae fermentate, on cold and flu symptoms among healthy individuals who had recently received a flu shot. Over 12 weeks, we conducted a randomized, double-blind, placebo-controlled trial with 116 participants who took either EpiCor or a placebo.

Those supplemented with EpiCor reported significantly fewer symptoms and a shorter duration of illness compared to those on the placebo. This suggests that EpiCor may offer a beneficial approach to reducing cold and flu-like symptoms.
Read More
9
Yeast postbiotic reduces cold symptoms
Efficacy of a yeast postbiotic on cold/flu symptoms in healthy children: A randomized-controlled trial.
Highly relevant to pediatric health
We examined the effectiveness of EpiCor, a yeast-derived postbiotic, on cold and flu symptoms in children. In a randomized controlled trial involving 256 kids aged 4-12, we compared those receiving EpiCor with a placebo for 84 days during flu season.

Results showed that children taking EpiCor experienced less severe cold and flu symptoms and used fewer medications than those on the placebo. This suggests that EpiCor can enhance immune function safely, providing a helpful option for managing colds in children.
Read More
9
Yeast supplement shows potential benefits
Immunogenic yeast-based fermentate for cold/flu-like symptoms in nonvaccinated individuals.
Relevant score indicates research need
We conducted a comprehensive 12-week study to see how a daily yeast-based supplement, specifically Saccharomyces cerevisiae, affects people without recent flu vaccinations. In our randomized, double-blind trial involving 116 participants, those receiving the supplement noted improvements in cold and flu-like symptoms.

While promising, it's essential to highlight that more research is necessary to establish its effectiveness across broader groups. The initial results suggest that this nutritional supplement could offer a safe way to help those prone to these common illnesses.
Read More

Most Useful Reviews

9.5
Reduced intestinal discomfort
I initially used this for an anti-candida protocol, but had to administer it early. My child suffered from terrible intestinal discomfort. However, after introducing Saccharomyces on the tenth day, the rumbling stopped, and he seemed calmer. The capsules are large and difficult for a child to swallow, but I diluted them in cold water and used a syringe. Thankfully, everything seems to be fine.
Read More
9.5
Supports antibiotic treatment
This is an excellent supplement! Saccharomyces can be taken alongside antibiotics, which is essential these days. They help maintain intestinal microflora during treatments. They don’t permanently settle but assist in keeping good bacteria. I've found them helpful for managing common colds and digestive issues.
Read More
9.5
Quick relief from vomiting
This product is fantastic! In Japan, gastroenteritis is common, and I lost eight pounds in two days from it. A friend gave me this supplement, and I felt better almost instantly. I’m grateful that iHerb delivers it here—it's a must-have!
Read More

Medical Researches

SCIENTIFIC SCORE
Moderately Effective
Based on 5 Researches
8.4
9
Yeast postbiotic reduces cold symptoms
Efficacy of a yeast postbiotic on cold/flu symptoms in healthy children: A randomized-controlled trial.
Highly relevant to pediatric health
We examined the effectiveness of EpiCor, a yeast-derived postbiotic, on cold and flu symptoms in children. In a randomized controlled trial involving 256 kids aged 4-12, we compared those receiving EpiCor with a placebo for 84 days during flu season.

Results showed that children taking EpiCor experienced less severe cold and flu symptoms and used fewer medications than those on the placebo. This suggests that EpiCor can enhance immune function safely, providing a helpful option for managing colds in children.
Read More
9
Yeast supplement shows potential benefits
Immunogenic yeast-based fermentate for cold/flu-like symptoms in nonvaccinated individuals.
Relevant score indicates research need
We conducted a comprehensive 12-week study to see how a daily yeast-based supplement, specifically Saccharomyces cerevisiae, affects people without recent flu vaccinations. In our randomized, double-blind trial involving 116 participants, those receiving the supplement noted improvements in cold and flu-like symptoms.

While promising, it's essential to highlight that more research is necessary to establish its effectiveness across broader groups. The initial results suggest that this nutritional supplement could offer a safe way to help those prone to these common illnesses.
Read More
9
Yeast supplement reduces cold symptoms
Effects of a modified yeast supplement on cold/flu symptoms.
High relevance to cold treatment
We explored the effects of EpiCor, a dried Saccharomyces cerevisiae fermentate, on cold and flu symptoms among healthy individuals who had recently received a flu shot. Over 12 weeks, we conducted a randomized, double-blind, placebo-controlled trial with 116 participants who took either EpiCor or a placebo.

Those supplemented with EpiCor reported significantly fewer symptoms and a shorter duration of illness compared to those on the placebo. This suggests that EpiCor may offer a beneficial approach to reducing cold and flu-like symptoms.
Read More
8
Baker's yeast supports immune function
Baker's yeast beta glucan supplementation increases salivary IgA and decreases cold/flu symptomatic days after intense exercise.
Well-supported findings on immunity
We aimed to explore the effects of baker's yeast β-glucan (BG) on the immune system of those engaging in intense exercise. In two experiments involving over 240 men and women, we found that BG reduced cold and flu symptom days by 37% after a marathon compared to a placebo. Additionally, BG boosted salivary IgA levels, which is crucial for immune defense, by 32% after strenuous cycling. This suggests that BG could be beneficial for those at risk of upper respiratory infections following intense physical activity.
Read More
7
Yeast beta-glucan reduces cold episodes
Yeast (1,3)-(1,6)-beta-glucan helps to maintain the body's defence against pathogens: a double-blind, randomized, placebo-controlled, multicentric study in healthy subjects.
Demonstrated potential health benefits
We conducted a clinical trial to see if brewers' yeast, specifically its beta-glucan component, could reduce common cold episodes in healthy individuals.

In this study, 162 volunteers took either yeast beta-glucan or a placebo for 16 weeks. Each participant tracked their cold episodes and symptoms.

We found that those taking the yeast supplement had 25% fewer colds and reported better overall symptom management compared to the placebo group. Notably, participants experienced fewer sleep disturbances related to their colds.
Read More

User Reviews

USERS' SCORE
Excellent
Based on 23 Reviews
9
9.5
Reduced intestinal discomfort
I initially used this for an anti-candida protocol, but had to administer it early. My child suffered from terrible intestinal discomfort. However, after introducing Saccharomyces on the tenth day, the rumbling stopped, and he seemed calmer. The capsules are large and difficult for a child to swallow, but I diluted them in cold water and used a syringe. Thankfully, everything seems to be fine.
Read More
9.5
Supports antibiotic treatment
This is an excellent supplement! Saccharomyces can be taken alongside antibiotics, which is essential these days. They help maintain intestinal microflora during treatments. They don’t permanently settle but assist in keeping good bacteria. I've found them helpful for managing common colds and digestive issues.
Read More
9.5
Quick relief from vomiting
This product is fantastic! In Japan, gastroenteritis is common, and I lost eight pounds in two days from it. A friend gave me this supplement, and I felt better almost instantly. I’m grateful that iHerb delivers it here—it's a must-have!
9.5
Essential first aid
These should be in every home first aid kit. They effectively address various issues, including common colds. I noticed a rapid improvement—my runny nose cleared up in a day!
9.5
Necessary supplement
I believe this supplement is essential in every first-aid kit. It combats nasty microflora, helping establish good gut health, whether for a cold or after travel. The product quality is quite high.
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