I'm a prime example of that potato chip commercial that says "I bet you can't have just one." I don't have an off switch and can never stop at one of anything. Those of us that suffer with a compulsive binge eating disorder there is no such thing as "just one." No matter how much I try to convince myself I will only have one or a single serving, I just can't stop myself from going back for more and more until I'm sick to my stomach.
Don't ever wait ten minutes to ask me for a lifesaver out of a pack I just bought because they will probably be gone by then so I don't buy them anymore. I inevitably end up eating one after another. Some people use gum as a trick to keep from eating but I will chew piece after piece until the entire package is gone. I'll start out by portioning out a handful of crackers or other snack but will keep going back for handful after handful until I've emptied the box.
The only way to stop this compulsive eating is to not start in the first place. Once I start eating I don't know how to shut it off even if I feel full and my stomach hurts. It is in my head and I'm not sure how to shut it off to stop it. The times I have been successful with weight loss have been when I completely avoid those simple carbs that never seem to fill me up no matter how much I eat. I think the simple carbs are a trigger for me to just keep eating more and more and never feel like it is enough.
This mentality is the reason I can't keep snack foods in my house. I can't handle the temptation and I can never have just one. I need to learn how to control this compulsive eating because no amount of time sweating on the treadmill will make up for the out of control binges.