Tender, Nutrient-Rich Bites for Your Pups Adventures in Training. Overview: To your puppy, every day is a new adventure. Theres so much to learn: Come. Sit. Stay. And, perhaps most important, always do your business outside. Treat your way to a better-behaved puppy with grain-free Zukes Puppy Naturals. Theyre an ideal, puppy-sized reward for a job well done and a perfect complement to your pups playful spirit and developing taste buds. Specially crafted in the USA using the Earths best ingredients, theyre made with protein-rich salmon, pork or lamb, plus added DHA and EPA to help support puppys healthy brain development. Mighty impressive at just 3.5 calories per treat.