I saw this report on TV several weeks ago and am shocked how easily u guys are blaming the parents without knowing the fact behind it.
If I remember right, this girl has a genetic disorder that doesnt tell her that she is full .. so that she can eat and eat till there is no end .. she is never fully satisfied and feels hugry all times and can be aggressive if she doesnt get the food ... some rare case of this disease are in this world, there was even a girl in India with this disorder who would beg from her neighbors if she didnt get enough at home.
I saw the girl literally rocking the fridge as the mother put chains on the door to stop her from opening it.
Its easy to blame the parents but sometimes some conditions can only be solved with help of professional or medicine / treatment.