For a tasty and wholesome training boost, try Pupford Train Beef Liver Natural Freeze-Dried Dog Treats! These limited-ingredient treats are made with natural ingredients including beef liver and beef heart. These meats are naturally rich in protein and fatty acids along with vitamins and minerals to support strong muscles, a shiny coat and a healthy pup. Pupford’s low-calorie, grain- and gluten-free training treats are freeze-dried to help maintain maximum nutrition and flavor, making them paw-fect for pups who are on a restricted diet, have allergies or need to watch their weight.