Applaws Cat Tuna Fillets with Cheese in Broth. Applaws Tuna Fillet with Cheese in Broth contains nothing more than the ingredients listed and is a 100% natural complementary pet food for adult cats. ? CompositionTuna Fillet 70%, Fish Broth, Cheese 6%, Rice. Analytical ConstituentsProtein 14%Crude Fibre 1%Crude Fat 0.5%Crude Ash 2%Moisture 82% AdditivesNone