Blue Buffalo® Wilderness™ Adult Treat Cat Food - Natural, Chicken & Trout. Satisfy your cat's wild side with Blue Buffalo Wilderness Adult Wet Cat Food, a natural, high-protein meal featuring two delicious sources of flavor. Each 5.5 oz can contains tender, flaky Chicken & Trout in a rich, savory gravy. This formula is made with no chicken (or poultry) by-product meals, corn, wheat, soy, or artificial flavors and preservatives. For daily feeding, it's recommended to serve approximately 1½ cans per 6 to 8 lbs of body weight.