There are many ways that you can teach your dog that as human, YOU control the food, when it is given, how much, and when it is taken away.
I will explain to you how we controlled our dogs food aggression, but keep in mind, we noticed it with him when he was very young so we were training this with a 12 week old pup not a full grown dog, with full jaw strength and adult teeth. But it may give you a base to model and customise your training around to be more appropriate to an adult animal.
We had kato with us for a few weeks, and i noticed one night that he growled at my daughter for walking past him whilst he was eating, but she was about 10 feet away, to me, this reaction meant iminent (sp?) danger to our daughter if we let it go on.
From that point on, and for the rest of his life, we decided that he was to have made clear to him, who exactly controls his food, and it was not going to be him.
So, next feed, we made him sit and wait, and until he did so without breaking position, his food would not be given to him. Once he was still and quiet the food bowl put down, and I would handle him, pat around the face and touch his food whilst he ate, if he growled i removed it all, and would begin again a few moments later. It didnt take him long to assosiate growling with the removal of food, and that good behaviour would bring it back again, so daughter then began this same process, and then we recruited friends and outside family to do this too, so he learned that he must tolerate human handling whilst eating with manners and dignity. Phase 1 completed.
Then we decided that for safetey sake, that we would take this even further, and teach food removal........(mainly this was to set us up to be able to remove any food or toy from him at any stage without putting anyone in danger of bite or poor reaction). Following process above, mid meal we took it in turns to remove his bowl from him, at the same time telling him to "leave it" if he did so with manners, quickly he was made to sit again and the food returned with a little extra treat inside (we found a tiny bit of bacon was the best) if he snapped or growled his wait was longer we would walk away begin again and no treat given apon return of his food. So once again, he learned, that food removal meant a treat IF he was well manered about the situation.
Kato has been with us now for coming up to two years, and this is a process he still goes through every single day. He knows we have complete controll over his food, including daughter, and he knows to surrender his food when we demand him to do so, after all why wouldnt he? Its always means something good when he is requested to surrender the food.
On top of this, we have always been mindfull of his behaviour around us all when we eat, he has learned to lie still and quiet whilst we are eating, and not to try and grab any of our food from us, if he does he is reprimanded, ignored and put back in a drop stay until release command given. We do NOT feed him from the table, and we do NOT let him beg us or our guests to do so. If he bahaves well he MAY get some scraps in his bowl after we have all eaten and table is cleared, but that depends entirely on his behaviour over the meal period. We have instilled in him the fact that humans have 100 percent control over his eating habits, when he does or does not eat, we have given him one and one only thing that he can choose to control, that is his behaviour about it, and if it is very good, the food he gets is better than if he was not well behaved about it.
We are very pleased with the control that we have over him when it comes to food, and it is one that we love to show off to friends and family as well, they are always amazed at his restraint and ability to hold back on food untill he is given the OK to eat it, so much so that we can throw in other commands giving him permission to eat, but he still will not do so unless the right command is given.
The safest way I could think of you adopting a similar method would be with assistance and somone keeping your dog under control by a lead as you go through these processes, at least then you may be able to move around food and handle food, and if your dog reacts poorly somone can physically remove him far enough from the situation as to keep you safe from bite. With persistance you will get there, you just need to find a method that is both safe and works for you and your dog, but I thought I would share the method we used with ours, as atleast a starting model for you to modify, and chop and change a bit to meet your requirements.
Just remember, if you need to pull the dog away, do so calmly with as little reaction from you or anyone else as possible, and reward and praise over the top when your dog gets it right, you want your dog to know that if he does what he is meant to, it means good things, extra treats and extra praise, not a growling when he gets it wrong, but rather a quiet calm correction, get it over and done with move on back to the good stuff.
Good luck, i hope you get ontop of it all soon and find the right method that works for you all.
fOOD AGGRESSION 
Linear Mode
