Everything that used to be a sin is now a disease - Bill Maher
Recently the American Medical Association classified obesity as a disease. According to the New York Times, it overrode the recommendation of the committee which had been appointed to study the matter.
I am not sure where I fall on this issue. There is no question that obesity, particularly childhood obesity, is a genuine problem. It is a growing problem, if you will. There is no question that personal lifestyle choices are at play. You can choose whether or not to put all that crap into your mouth and swallow it. You can just say no, and say it without ruining your enjoyment of food.
You can also work it off.