The ingredient list is simple. Our Limited Ingredient Diets are made with only pure, simple, essential ingredients that have been carefully chosen for their nutritional value and high digestibility. Each diet provides grain?free, gluten?free nutrition with one animal protein, combined with just a few other wholesome, natural ingredients. Each ingredient is carefully chosen for their nutritional value and digestibility. LID diets are free of commonly used pet food ingredients including chicken, beef, fish, eggs, dairy, grain and gluten.