Something about this strikes me as wrong.
I guess its cause if you say some people can't help it - its medical - then you are also saying most people CAN help it - its their fault. Why is it okay for excess weight to be the result of some medical condition, but not okay to be the result of eating too much?
I don't think its ANYONE'S fault, ever, when it comes to weight. I wish it wasn't about fault at all. I know what it feels like to have an insulin spike and crave sugar even though your stomach is full. Those cravings can be awfully hard to resist even for grownups. Or eating when you're depressed, or bored. Or whatever the reasons are. Aren't they just as valid as a "medical" reason?