Bulimia Nervosa. Bulimia nervosa (BN) is characterized
by recurrent episodes of binge eating followed by repeated
inappropriate compensatory behaviors to preventweight gain
(such as self-induced vomiting, fasting, or excessive exercise
or amisuse of laxatives or othermedications) [28]. BN occurs
in 1–3% of the population [16]. According to the DSM-
5, binge eating and inappropriate compensatory behaviors
should both occur, on average, at least once a week for 3
months.