Bulimic behavior has two phases: the binge and the purge.
Although there are certainly individual variations, a binge is defined as the rapid consumption of a large amount of high-calorie food in a short amount of time. A binge can consist of almost anything. Often it can depend on what is available in terms of food and finances.
Once a binge begins, it is very difficult to interrupt. People often describe feeling in a trance or a stupor; food can be consumed so rapidly that it is not even tasted. An average bulimic binge may consist of about 1,500 to 3,000 calories, although some individuals have reported eating up to 60,000 calories or more during a binge. more