Applaws Cat Tuna Fillet with Seaweed in Broth. Applaws Tuna Fillet with Seaweed in Broth contains nothing more than the ingredients listed and is a 100% natural complementary pet food for adult cats. Composition Tuna Fillet 70%, Fish Broth, Seaweed 5%, Rice. Analytical Constituents Protein 12% Crude Fibre 1% Crude Fat 0.5% Crude Ash 2% Moisture 82% Additives None