i thought i responded to you, but sometimes i hit 'preview' and forget to actually submit my post later. grrrr!
well, what i wanted to say was that any over eating is taxing to the stomach and GI tract. over loading your digestion dilutes down your digestive juices and enzymes so that your digestion is then inefficient. it is a stress on our bodies to eat more food than we can sufficiently process.
on the other hand, i have to agree that over doing it on carrots is definitely a plus from the same amount of bulk in snickers bars!
but like CRC said, it is still a compulsive behavior and that in and of itself is not good.