Crunchy, Wholesome Bites for All Your Adventures in Training. Training is an adventure and a journey. To encourage your dog along the way, its important to use a right-sized treat. Zukes Crunchy Naturals 10-calorie dog treats are specially crafted in the USA using the Earths best ingredients like wholefood berries, bananas, pumpkin, sweet potatoes, protein-rich peanut butter, plus vitamins and minerals and NO corn, wheat or soy. At only 10 calories, these crunchy, baked treats are a healthy, guilt-free, delicious reward or training treat for medium- and large-sized dogs. Formerly known as Skinny Bakes, different recipes are available in 2-calorie and 5-calorie varieties.