My boxer is 16 months old and weighs 49 pounds. The vet said that she was ok but I would like for her to weigh a little more. We have tried different dog foods and all have the same result. She eats them for a few weeks and then she doesn't eat. They say just take the bowl away if she doesn't eat, but that doesn't work. She just won't eat at all. She eats a little, but not very much. I know it's not good to switch her dog food a lot, but we did it thinking it was the food. We have tried everything. Any suggestions?

