[sammyg2]

IN MY HUMBLE OPINION AS A NON-MEDICALLY TRAINED PERSON:

Most people eat fast (and get fat) for a reason even if they don't realize it.
The sensation of being really full releases chemicals in the brain that cause pleasure. Overeating is very addictive. The more you do it the more you need to do it.
Some people stuff themselves for the high. It's on purpose even if not conscious.

There's a stop smoking drug called chantix that blocks the "good feeling" that results from smoking. Know what else it does?
In many folks it also helps them loose weight because it blocks the food high. Typically when people stop smoking they substitute food for nicotine but the chantix blocks that sensation also and a surprising percentage actually looses weight on chantix.

They don't talk about that because it isn't approved for weight loss and don't want the controversy and trouble. Yet.