PetGuard Yeast & Garlic (Powder) Supplement for Dogs & Cats, 12-Ounce Canisters (Pack of 3) Pack of three, 12-ounce canisters (total of 36-ounces) Nourishes and strengthens your pet naturally with protein and the essential B Complex Vitamins Help your pet be healthier, happier, more disease resistant and less prone to problems