Taste Of The Wild Cat Food Canyon RiverTaste of the Wild Grain Free High Protein Real Meat Recipe Canyon River Premium Dry Cat Food Made with trout and smoked salmon, the only source of animal protein in this formula is fish, so it can be a good option for cats with food allergies or sensitivities. Nutrient packed vegetables and fruits provide antioxidants to help support a healthy immune system and overall vitality, just like nature intended.