Blue Buffalo® Wilderness™ Adult Cat Food - Natural, Chicken & Trout. Give your cat a protein-rich meal with BLUE Wilderness Flaked Chicken & Trout Wild Delights Wet Cat Food. Each 5.5 oz can features two delicious protein sources—tender, flaky chicken and succulent trout—in a rich, savory gravy. This natural 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 6-8 lbs of body weight.