eating disorders

anorexia nervosa (AN)

CxA: severe restriction of energy intake → significantly low body weight

CxB: intense fear of gaining weight of gaining weight or becoming fat

CxC: Distorted body image/undue influence of weight on self worth

restricting type: no binge/purge behaviors

binge-eating/purging type : including compensatory behaviors

Bulimia Nervosa (BN)

CxA: recurrent binge episodes (large food intake + loss of control)

CxB: compensatory behaviors (vomiting, laxatives, fasting, exercise)

CxC: binge/compensate greater than or equal to 1x/week for 3 months

CxD: self evaluation dominated by weight/shape

BInge eating disorder (BED)

CxA: recurrent binge episodes

CxB: binge episodes include greater than of equal to 3 of: rapid eating, fullness, eating when not hungry, secrecy, guilt

CxC: marked distress about binging

CxD: binge greater than or equal to 1x/week for 3 months

key difference: no compensatory behaviors (vs. BN)

avoidant/restrictive food intake disorder (ARFID)

CxA: avoidance/restriction due to sensory issues, fear of aversive consequences (e.g., choking), or lack of interest → nutritional deficits/weight loss

key difference: no body image disturbance (vs. AN/BN/BED)

PICA

persistent eating of non-nutritive substances (e.g., chalk, hair) for greater than or equal to 1 month

BDD (body dysmorphic disorder)

focus: preoccupation with specific perceived flaws (e.g., nose shape, skin) unrelated to weight/shape

behaviors: compulsive mirror checking, seeking surgery (vs. food restriction/binging)

eating disorders

focus: weight/shape and food behaviors (e.g., calorie counting, purging)