Every dog treat is not necessarily a successful Training Reward! The Crazy Dog Train-Me! Training Rewards have been tested and recommended by thousands of professional dog trainers because they have proven to attract, focus, motivate and reward dogs for learning a task. And, that helps shorten the leaning curve and make training lessons more successful! Pork liver (tested against all other meats( is the first ingredient in all our treats. It has proven to be the most effective at attracting and maintaining a dog's attention and focus. To add variety to your dog's training sessions, other natural flavors like bacon, beef and chicken are added to the pork liver. A well trained dog is a member of the family.