The Blue Buffalo Bursts Crunchy Cat Treats are made with real chicken or fish that is the first ingredient. These treats are also free of any poultry by-products, corn, wheat or soy. They are also easy on the cat’s digestion thanks to being baked at low temperatures. The Blue Buffalo Bursts Crunchy Cat Treats are perfect for all life stages of your cat including adults, kittens, and pregnant cats.