I like to use albacore white flaked tuna as it mixes easily into the salad, but you can also use solid white tuna and break it apart with a fork. Solid or flaked light (as opposed to white) tuna works too. I used tuna packed in water, but you can also used tuna packed in oil for extra flavour. If you use a low sodium tuna, you will need to add more seasoning to the salad.