Dick Van Patten's Natural Balance® L.I.D. Limited Ingredient Diets® Potato & Duck Dry Formula offers your dog potato and duck dog food without the extra ingredients. Natural Balance L.I.D Limited Ingredients Diets blend is our special grain-free diet, which provides high quality nutrition for your dog with a limited number of protein and carbohydrate sources. Natural Balance L.I.D. Limited Ingredient Diets formula offers complete and balanced nutrition for all breeds and life stages from puppies to adults.