Square Egg - Alternate Protein Dog FoodThe secret to Square Egg is pure and simple eggs and whey. These perfect protein powerhouse ingredients help to create a vegetarian formula that provides your dog with truly superior protein nutrition. Eggs and whey each contain all the essential amino acids required by dogs for optimum growth & health and rank highest in protein bioavailability. Superfood ingredients like coconut, cranberries, kale, blueberries, plus antioxidant vitamins, and