Zuke’s Puppy Naturals With Added Vitamins And Minerals Training Treats, Salmon Recipe. Natural Soft Puppy Treats For Training Real salmon is the first ingredient in these tender puppy training treats. These fish treats bites are crafted in the USA with the Earth’s ingredients, like salmon and cherries This premium bag of treats with salmon is formulated with added DHA and EPA, which help to support brain development in the early stages of a dog’s life