I'd never heard this before, so I'm extra glad that I read this thread! I don't feed a lot of tuna, but once in a while she'll have a can of grain-free tuna flavor (has to eat all or mostly grain-free.) I've not heard of the tuna specifically for cats, but I'll check into that. It's unnerving how there are so many things that can hurt our babies and if we wouldn't do the research, we'd never even know it. :-(
Does the same go for salmon? I mean would it be the same issue with the taurine that tuna has? We've never given her "people tuna" or any kind of people food for that matter... although if I could find some good and healthy recipes, I wouldn't mind trying some homemade cat food.