My concern is the sodium. Pay attention to where the tuna comes from and avoid making tuna the headliner in your cats diet. Thanks to this site I have read that tuna is not healthy for cats.
They love the powerful smell and the robust flavor of this fish and a spoonful of tuna has been known to make the medicine go down easily. Making sure your cat sticks to a regular diet with plenty of fluid is crucial to keep them healthy. The simple answer is that cats are attracted to tuna. But because of concerns around mercury you wouldnt want to make tuna water or juice a regular part of your cats diet.