Blue Buffalo® Tastefuls™ Adult Cat Food - Natural, Tuna. Delight your feline with Blue Buffalo® Tastefuls™ Adult Cat Food Natural Tuna, a delicious and healthy wet cat food option. This recipe features real, protein-rich tuna as the first ingredient in a savory gravy, along with brown rice and sweet potatoes for wholesome nutrition. Each 3 oz can provides essential hydration and is crafted with natural ingredients, no chicken (or poultry) by-product meals, and no corn, soy, or wheat. For daily feeding, it's recommended to serve 2.5 cans per 6 to 8 lbs of body weight. When transitioning to this new food, gradually mix it with their current food over 14 days.