Methods to prevent dogs from picking up food:

1. The most direct way is to prepare a leash for the dog and wear a dog-specific mask to prevent the dog from Eat whatever you want.

2. Training commands. When the dog picks up food, the owner should immediately and sternly stop it: "No eating". If there is a traction rope, pull the rope sharply and gently slap its mouth with your hand. , stop the dog’s behavior in time.

3. Deliberate training and small lessons. The owner can arrange some meat with chili or mustard in advance in a deserted place, and when the dog comes to eat, he will be taught a lesson and his memory will gradually grow.

The reasons why dogs pick up food:

1. Hunger and appetite; some dogs like to sniff around because of hunger or excessive appetite when going out. Eat it if you can.

2. Habits. Dogs are born to find prey through their sense of smell. This habit will not change even after being domesticated by humans.

3. Curiosity. A dog that has been tied up for a day must be very excited when it suddenly goes out for fun. It smells here and there and looks here and there.