The Future of Probiotics
Saccharomyces boulardii is an exciting probiotic yeast that’s not harmed by the drugs and chemicals that can damage bacteria-based probiotics. This makes Saccharomyces boulardii the perfect choice for dogs exposed to drugs and chemicals.
- Helps maintain a healthy gut lining: Studies show S. boulardii can influence parts of the immune system that maintain proper gut permeability.
- Low glycemic load: While most probiotics are carried in maltodextrin, which is high glycemic and can spike insulin, S. boulardii is free of dextrins and other harmful fillers.
- Third party tested: For quality and purity.
Ingredients
This friendly yeast delivers other gut benefits too. It helps maintain a healthy gut lining and studies show S. boulardii can influence parts of the immune system that maintain proper gut permeability.
Organic inulin from Jerusalem artichokeInulin is a type of soluble fiber that acts as a prebiotic that to help grow beneficial gut bacteria, thereby supporting overall digestive health. FOS may contribute to better glycemic control by balancing blood sugar levels.
Refrigerate after opening.
| Body Weight | Amount Per Day | |
| 1-25 lbs | 1/8 tsp daily | |
| 26-50 lbs | 1/4 tsp daily | |
| 51-75 lbs | 1/2 tsp daily | |
| 76 – 100 lbs | 3/4 tsp daily | |
| 100 + lbs | 1 tsp daily |
Frequently Asked Questions
Saccharomyces boulardii is a probiotic yeast while most probiotics are bacteria. As a probiotic yeast, S. boulardii is less susceptible to chemicals that can harm regular probiotics.
None of our products or ingredients contain maltodextrin. Maltodextrin is a partially hydrolyzed sugar that is ultra-processed, provides no nutritional value and carries the highest glycemic index of any other food. We make sure all of our ingredients are free of all dextrins so we can always support a healthy immune system and gut environment.
We recommend keeping all Four Leaf Rover products in the fridge to maintain freshness. But if space is limited, you can store Saccharomyces boulardii in a cool, dark place.

















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