Scrumptious Tuna Dinner with Whitefish in Gravy is a rich, holistic wet food. Containing wholesome, red meat tuna and pumpkin marinated in gravy. Red meat tuna is unique; Tuna is always swimming and must keep swimming to survive, the red meat is considered a muscle that gets its pigment from having high myoglobin. Myoglobin is released into the tissue to transfer oxygen, producing more energy, hence, the red pigment. What does this mean to your cat? Nothing, but It means that each can contains a highly palatable, rich in protein, easy to digest meat that supports muscle development and healthy digestion.