"Chunk light" refers to a type of canned tuna that is made from smaller fish, typically skipjack tuna. It is known for its mild flavor and flaky texture, making it a popular choice for salads, sandwiches, and casseroles. The term "chunk" indicates that the fish is packed in larger pieces compared to other forms, such as "solid white" tuna. This variety of tuna is often more affordable than solid white tuna, which comes from larger fish like albacore. "Chunk light" tuna is usually packed in water or oil, and it is a good source of protein and omega-3 fatty acids, contributing to a healthy diet.