The most worry-free and scientific way is to feed the dog food. Self-made dog food takes a long time, is not easy to preserve, has unbalanced nutrition, and the cost is similar to that of dog food. It is because it is picky about food and doesn't eat dog food. You put the dog food in front of him in the morning and take it away after ten minutes without eating it. Feed it in the afternoon and take it away. The dog is hungry. Generally, they will be fine if they don't eat for three or four days, so you must be more persistent than him! You can change your dog when it is young, but during this period, don't give anything but dog food, and replenish enough water. Success belongs to persistent people.