"Drop It" Cue
Forcibly taking something from a dog and punishing them for growling can lead to SERIOUS Aggression issues. You may be scary enough for them to concede, but children are often bitten. Teach your dog to happily give you what they have instead.
Resource Guarding Aggression
If your dog is already biting over food, chews, or toys, we can help. Visit this link for details:
It is a myth that you should put your hands in your dog's food bowl while they eat to get them used to it. Some dogs become MORE anxious about hands near their food rather than less. Think about how you would feel if your spouse dug their fingers in your mashed potatoes while you were trying to eat! When I was a kid, my parents told me never to mess with a dog when they were eating. That is still good advice today.
It is also a myth that you should take away bones or chews by force and punish your dog if they growl about it. Growls are important communication that your dog is unhappy. Punishing them for growling will stop the growling, but it will not stop your dog from being unhappy. Punishing a dog for growling is how you teach a dog to bite without warning!
Dogs who have had bones or chews forcibly taken from them learn that people coming near them when they have something good means they might lose it. They can become very aggressive very quickly. They may not bite you if they are afraid to, but a child may end up bitten because the dog is not afraid of them. Teaching your dog to COOPERATE rather than to COMPLY is always the better choice!