Binge Eating Disorder is a diagnosis characterised by frequent episodes in binge eating, or consuming a large amount of food in a short period of time. During the binge period the person usually feels a loss of control and/or a high level of distress. Binge Eating is very different to occasionally eating a larger portion of food than you may be comfortable with, it instead relates to episodes of eating which can leave a person feeling extremely uncomfortable and distressed, with potentially signficant impacts on physical and mental health.
More information is available from the National Eating Disorders Collaboration.