These Sweet Potato Dog Chews only use one-ingredient to make a nutritious dog treat. Cheap, Healthy and Homemade. Win-win! Sweet potato is a safe, healthy, and natural treat for dogs, offering a range of health benefits (and a sweet flavor they’ll likely love). For example, sweet potatoes support a healthy digestive system thanks to their high dietary fiber content. They’re also low in fat and contain essential vitamins like B6, C, and A….