Brewers Yeast Pet Supplement. Brewer’s and nutritional yeasts are available in powder, liquid, or tablet form. Another benefit of brewer’s yeast is that, if your pet receives daily supplements of brewer’s yeast, it may help to repel biting insects like ticks and fleas.
The powder form is usually mixed with water. Dry brewer’s yeast has a positive effect. Bys brewers yeast is the natural alternative for dogs and cats.