When choosing a diet for your pet, look for a reputable pet food company. Do they own their own manufacturing plant? Do they participate in research and use boarded veterinary nutritionists to formulate their diets? Do they have a good safety record? Have their diets been tested through actual AAFCO feeding trials? You can check a company's website or helpline, and the FDA pet food recall website to learn more before you buy, or ask your veterinarian.