PetGuard Yeast & Garlic WafersPetGuard Yeast & Garlic Wafers Natural Pet Supplement. Yeast & Garlic Wafers a food supplement for dogs and cats. Contains natural vitamins, minerals and protein. No sugar, no preservatives, no artificial colors, no artificial flavors. PetGuard Yeast and Garlic Wafers are a nutritious and tasty supplement that will appeal to dogs and cats of all ages. PetGuard natural ingredients provides significant amount of B complex vitamins as well as other