since zero was a puppy , I routinely make him do tricks and sit for his food. I give it to him, and then about half way through the meal, I will pick his bowl up and make him sit again. he has always done it no problem, has no food aggression at all. i did this and continue to because i can't have a 140 pound akita getting aggressive on me or my family...lol Only thing is that we don't have another dog, so I can't say that he isn't food aggressive against dogs, but he hasn't shown any aggression towards us humans anyways.