If you're looking to improve your animal’s digestion, immunity, and overall health, Brewer’s Yeast is one of the most underrated but powerful natural supplements out there. At Trisana Nutrition, we include 100% pure Brewer’s Yeast in our lineup because of its proven ability to boost gut health, a foundation for long-term wellness in both dogs and horses. What is Brewer’s Yeast? Brewer’s Yeast is a nutrient-dense byproduct of beer brewing that’s rich in B vitamins, amino acids