Dr John Hypoallergenic Duck & Salmon recipe is a hypoallergenic recipe made without added wheat and any form of chicken (including chicken fat). With 14% duck & 14% salmon this adult dog food from Dr John recipe provides healthy protein and essential fats with a crunchy base of rice & barley for easy digestion. Dr John Hypoallergenic Duck & Salmon is designed to help support dogs with sensitive stomachs or those with difficulty digesting wheat or chicken.