Have not purchased from Amazon, but want to share the experience. Have a sensitive dog, he is anxious and has long since risen. I can try out with my therapist for him the food compatibility. "Normal" known foods will not mention, but you can see plenty of advertising of which interfere with digestion and weight. Then I Wolfsblut Wild Duck tested and let Purina ProPlan test performance - tested both good, is well tolerated by the dog.