Canadian Brand. Made with 96% salmon, duck, & duck liver, dogs love the taste of Zeal's hypoallergenic protein-rich food. Air-drying transforms it into deliciously satisfying jerky-like pieces that even the pickiest eaters dig into. Salmon is renowned for its Omega-3 fatty acids, which support the immune system and help reduce inflammation. Duck offers dogs an easily digestible protein source, which is rich in iron. Air-drying retains optimal nutrition, essential vitamins, minerals and amino acids. The nutrition of raw. The simplicity of dry.