Secretive eating and binge eating following bariatric surgery

Abstract

Objective: Some individuals eat furtively and conceal evidence of eating, and this seems to occur beyond binge-eating episodes. This type of secretive eating is common among youth and emerging evidences suggests that it is a relevant marker of eating disorder psychopathology among adults with significant eating and weight concerns.

Method: We assessed secretive eating, loss-of-control (LOC) eating, and eating disorder psychopathology using investigator-based interviews among treatment-seeking adults experiencing LOC eating following bariatric surgery (N = 168). Participants also completed an established depression measure; height and weight were measured.

Results: Overall, 37% of patients reported secretive eating: 54% of patients who met criteria for binge-eating disorder except for the size criterion ("bariatric BED") and 25% of patients with subthreshold bariatric BED reported secretive eating. Many clinical variables were higher among patients with secretive eating compared to those without secretive eating; however, only eating disorder psychopathology severity and body dissatisfaction remained significantly higher among patients with secretive eating compared to those without when bariatric BED status was also included as a variable in the model.

Discussion: Findings suggest that among post-bariatric surgery patients with LOC eating, secretive eating signals more severe eating disorder psychopathology overall and specifically related to dissatisfaction with weight and shape. Bariatric BED status, however, has a stronger association than secretive eating with many clinical variables. Secretive eating should be assessed and considered when addressing weight and shape concerns among patients experiencing LOC eating after bariatric surgery.

Keywords: bariatric surgery; binge eating; loss-of-control eating; secret eating.