New Formula- Formulated with a limited list of premium protein and carbohydrate sources, this L.I.D. Limited Ingredient Diets formula is excellent when you are seeking alternative ingredients for your pet. L.I.D. Limited Ingredient Diets Sweet Potato & Fish Dry Dog Formula is a grain-free diet that's also designed to maintain your dog's digestive health while supporting healthy skin and a shiny, luxurious coat.