A process for preparing an extrudable product suitable for forming into a chewable pet food and comprising between about 56% to about 80% dry wheat gluten mix, between about 9% to about 28% liquid plasticizer mix and between about 8% to about 18% moisture by weight of the product is disclosed. The process comprises mixing the dry wheat gluten mix with water in an extruder, to form a moist wheat gluten mix, and mixing the moist wheat gluten mix with a liquid plasticizer mix and extruding at a temperature of less than 70.degree. C. to form the extrudable product. The invention also relates to the extrudable product and to the chewable pet food formed therefrom by means of either further extrusion or injection moulding.