We have more than a few secrets up our sleeves with these delicious chews! Made from nutritious, orange-fleshed yams, these chews are great for your dog's teeth and health because they're so high in antioxidants. They contain no artificial additives. The key is the patent pending drying process that turns soft sweet potatoes into a human quality chew, similar to beef jerky! And even better – they’re made in the USA and are odor-free.