Reward your dog with the chunky, meaty flavor he craves with a little something extra inside. The immune system jerky treats from Dogswell are made with real duck, for a treat that satisfies more than just his taste buds. That's because each flavorful bite helps to maintain his lean muscle mass with high-quality protein. How's that for a pick-me-up? with an additional antioxidant boost from vitamins A and E, these tasty treats promote a healthy immune system, too! So, while he's chomping on authentic, USA-made jerky, you can bask in the knowledge that his new favorite chew is a healthy, grain-free snack you can trust. It's everything your dog has ever wanted, with the top-tier ingredients you expect from a pet-loving company like Dogswell.