There are more and more dogs now, and some of the owners find their own dog food, and it's serious. It's not about the others.

The reason for dog feeding.
In fact, most dog feeding is because it's a way of survival, and even now it's a pet dog, but nature is hard to change, but more importantly it's the owner.
It's like eating in your restaurant, and the waiter suddenly takes away the food you're eating, and you're gonna be pissed off, even if you find a complaint from the restaurant manager, and it's the same thing with the dog, and it's gonna get pissed if you just take the food you're eating.
It's just that it's uncomfortable to be angry, so it takes the owner to train the dog and correct the food.
Change the pre-condition of food protection.
First of all, the moment the dog is taken home, you have to set the rules to make it clear that you're the owner, that it needs to listen to you, that it has the right relationship, and then start food training.
Don't be too spoiled to drown a dog, and pay due regard to some of its requests, such as when a dog comes in and asks for touch and play, you can ignore it and hold it in your hands. When it's doing the right thing, it can raise its tone to appreciate the dog and touch it; when it does something wrong, it needs to be punished appropriately and its gestures ignored.
How?
One, take the dog's lunch basin and let it sit quietly and wait on the floor in order to keep it quiet and move on.
Grab a piece of dog food in your hand, put the bed down on your feet slowly, remember it's slow, don't move too fast, or the dog gets excited, and if the dog gets excited, let it quiet again. It's because the dog can think that the food is yours.
After doing the first two steps, release the order and let it start eating, and when it's finished in the pot, then put the dog food in the pot, and let it watch you put the dog food, and if it's done calmly, there's no anomaly, then next meal can touch the dog and reward the snacks, so the dog can connect the pleasure of eating with you.
What if the food doesn't change?
Precaution is greater than cure, so when a dog is young, it needs to be trained, and be careful not to make mistakes, otherwise it will strengthen its feeding behavior, and if you can't solve it yourself, you're advised to send the dog to school or not to disturb it while it eats.
Having a dog, it's hard, easy, it's important to learn how to raise science, and after a long period of time, you'll find that it's part of your life, that the dog has a short life, that he's been with you for a very long time, and that he has to take care of it, especially with regard to his diet, which is a matter of his health.