At Natural Balance, we appreciate your desire to keep things simple when it comes to your pets nutrition. Thats why weve carefully crafted Limited Ingredient Diet dog food formulas for nearly two decades. While were always looking at opportunities improve our formulas, we only make changes when we feel it's in the best interests of your pets nutrition. Recently, our board-certified vetrinarians and animal nutritionists have taken great care to improve our Natural Balance L.I.D. Limited Ingredients Diets Duck and Potato Grain Free Dry Dog Food Formula.