Milk-Bone Original Dog Treats for medium dogs feature all the goodness of Milk-Bone Original dog biscuits, complete with that familiar bone shape, yet in a smaller, bite-sized form that medium-size dogs over 20 lb. can enjoy. Feel good about treating your dog more often because each dog biscuit is only 40 calories and is fortified with 12 vitamins and minerals to help keep your dog at his or her best. Its classic crunchy texture helps remove plaque and tarter buildup as your dog chews, which can also help freshen breath.