What is tuna flakes?

Tuna Flakes is tuna that has been cooked, flaked, and canned in its own juices. It is also known as canned flaked tuna. It usually contains salt and other seasonings such as vegetable broth or oil, and is often used in salads, sandwiches, casseroles, and other dishes. Tuna flakes are also a popular ingredient in salads and sandwiches.