>I think I read somewhere a while back that cats fed exclusively on canned >tuna get a taurine deficiency. Does anyone have any info on this? I know this isn't the Paleocat list, but...in the interest of having healthy pets: Not sure about the taurine. But, tuna can be dangerous for cats (as well as humans) due to potentially high levels of mercury from polluted waters. Deep-water fish are safer.