Applaws Cat Tuna Fillet in Jelly. Applaws Tuna in Jelly contains nothing more than the ingredients listed and is a natural complementary pet food for adult cats. Composition Tuna Fillet* 60%, Rice Flour*, Vegetable Gelling Agent. Analytical Constituents Protein 13% Crude Fibre 0.1% Crude Fat 1% Crude Ash 1% Moisture 83% Additives None