Canned catfood can be pretty hard on humans. Lots of proteins in excessive meat intake and certain types of meats.

Ya ain’t been chowing on a bunch of sardines or kippers have you? Or Little Friskie’s


Protein And Purines

Our feline friends need, primarily, animal proteins in their diet, according to WebMD. While all animal-based protein sources contain purines, some contain more than others. Organ meats like liver or kidneys, and certain types of fish such as sardines and herring, contain the highest amounts of purine, according to the Arthritis Foundation. You want to avoid such ingredients in your kitty's food, instead opting for protein sources lower in purines such as eggs, poultry and meat. Your vet can recommend a prescription cat food that's low in purines and contains just enough protein for your kitty's dietary needs to retard urate crystal in his urine.