Living World Extrusion Guinea Pig food is an extruded pellet diet which contains the correct levels of protein, fat, fiber, vitamins and minerals to help keep Guinea Pigs in excellent condition. Extrusion is made from high-quality ingredients which have been blended together and steam-heated, making them more digestible, highly palatable and improving the availability of nutrients to Guinea Pigs. It is an all-in-one pellet food that provides Guinea Pigs with a nutritionally complete diet to prevent selective feeding.