"Not all overeaters are obese, and not all obese people are overeaters," she said.
The only uniting characteristic is an overwhelming preoccupation with food, she said.
The behavior of compulsive overeaters is distinct from the average person who might indulge in normal "emotional eating" - like curling up with a carton of ice cream after a breakup or taking comfort in macaroni-and-cheese on a blue day.
Those in the throes of a binge feel they cannot stop and they eat until they are physically uncomfortable, according to Overeaters Anonymous.
For more information about binge-eating disorder, check out the following sites: