Saccharomyces boulardii – Probiotic yeast with 5 billion CFU per daily dose

Saccharomyces boulardii delivers 5 × 10⁹ CFU in a single capsule, which equals 5 billion live cells. While the vast majority of probiotics on the market consist of bacteria from the Lactobacillus and Bifidobacterium genera, Saccharomyces boulardii is a yeast, meaning it is a completely different type of microorganism.¹ It is classified among the most thoroughly researched yeasts of its kind.¹

Why a yeast specifically

Bacterial cultures are often sensitive to the acidic environment of the stomach, and a portion of them may not reach the intestines alive. Saccharomyces boulardii withstands stomach acid and bile salts and passes through the digestive tract viable.² Furthermore, as a yeast, it is not harmed by antibiotics, which would damage bacteria.³ It never permanently colonizes the intestines; it simply passes through and naturally exits, which is why it is taken regularly.³

Why take Saccharomyces boulardii

• You are planning a trip to exotic regions: Many people turn to S. boulardii specifically when traveling to distant destinations. The capsules do not require refrigeration, so they are easy to pack in your backpack.
• You are taking antibiotics: Antibiotics kill bacteria broadly, including beneficial ones. Since S. boulardii is a yeast, antibiotics do not affect it, and you can take them concurrently.³
• Bacterial probiotics did not suit you: If you have tried classic cultures and are looking for a different type, S. boulardii is the only widely used probiotic that is not a bacterium.
• You want certainty in every capsule: Exactly 5 billion CFU in the declared dose, featuring one of the most thoroughly researched yeasts available.

How to take Saccharomyces boulardii

Take 1 capsule daily with water. Timing is not important; you may take it at any time during the day, with or without food.

Saccharomyces boulardii and its benefits

• 5 billion CFU (5 × 10⁹) in one daily capsule
• Yeast instead of bacteria, as one of the few probiotics
• Withstands the acidic environment of the stomach and passes through the digestive tract alive
• Not affected by antibiotics, unlike bacterial cultures
• Vegan, gluten-free, lactose-free, GMO-free, and free of artificial sweeteners

Sources and scientific references

1. Pais P, Almeida V, Yılmaz M, et al. Saccharomyces boulardii: What Makes It Tick as Successful Probiotic? J Fungi (Basel). 2020;6(2):78.
2. Hossain MN, Afrin S, Humayun S, Ahmed MM, Saha BK. Identification and Growth Characterization of a Novel Strain of Saccharomyces boulardii Isolated From Soya Paste. Front Nutr. 2020;7:27.
3. Gopalan S, Ganapathy S, Mitra M, et al. Unique Properties of Yeast Probiotic Saccharomyces boulardii CNCM I-745: A Narrative Review. Cureus. 2023;15(10):e46314.

Nutritional information table

*CFU: Colony Forming Unit

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