Dogs can change their habit of eating shit. Dog poop eating is a relatively common behavior, usually caused by bad habits or health problems. If your dog has a normal appetite and has no health problems, you can change its poop-eating habit through training. The following are some methods that may be useful:

1. Supervision: When the dog tries to eat poop, you can use a command to stop it and divert its attention to other activities, such as throwing balls or toys.

2. Diet: Make sure your dog’s diet is nutritious, which can reduce its desire to eat poop. You can also add some probiotics and yeast, which contain beneficial bacteria, to your dog’s diet. These beneficial bacteria can help improve intestinal health.

3. Training: You can use training tools such as clickers to reward dogs for not eating poop. Also, avoid punishing your dog as this may make him more anxious and upset.

Reasons for dogs eating poop:

1. Hungry. When a dog is hungry and not selective about food, poop is nutritious food and contains a lot of protein. It can get enough calories after eating.

2. Protect the cubs. When a dog is just born, there is no reflex condition for urination and defecation. The mother dog needs to lick and stimulate it with her tongue. At the same time, she will also eat the puppy's excrement to prevent the taste from leaking out.

3. Innate behavior. Dogs are scavengers, and the smell of poop is very attractive to them. Eating poop can be said to be a kind of enjoyment.

4. Taste preference. Between normal food and hot feces, dogs choose hot feces, maybe because of its unique taste.

5. Destroy evidence. Some dogs are severely criticized, beaten and frightened by their owners after defecating, which makes them think that defecating is wrong. Later, in order to hide the defecation, they will eat it.

6. Have pica. Dogs will have eating habits due to lack of trace elements, so owners must have a reasonable and balanced diet for their dogs and not let their dogs be picky eaters.