Eating behavior as a prognostic factor for weight loss after gastric bypass.

Background: Binge-eating disorder (BED) may be associated with unsatisfactory weight loss in obese patients submitted to bariatric procedures. This study aims to investigate whether the presence of binge eating before Roux-en-Y gastric bypass (RYGBP) influences weight outcomes.

Methods: In a prospective design, 216 obese patients (37 males, 178 females, BMI=45.