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. 2024 Dec 9;16(23):4250.
doi: 10.3390/nu16234250.

Disordered Eating Behaviors and Weight Regain in Post-Bariatric Patients

Karynne Grutter Lopes  1   2 , Eline Coan Romagna  1   2 , Diogo Menezes Ferrazani Mattos  3 , Luiz Guilherme Kraemer-Aguiar  1   2   4
Affiliations

Disordered Eating Behaviors and Weight Regain in Post-Bariatric Patients

Karynne Grutter Lopes et al. Nutrients. .

Abstract

Background/objective: Weight regain has serious health consequences after bariatric surgery, and disordered eating behaviors (EBs) may be involved in it. We compared disordered EB symptoms in post-bariatric patients according to low vs. high ratio of weight regain (RWR) and investigated associations between disordered EB symptoms with weight regain and time since surgery.

Method: We recruited ninety-four patients who had undergone laparoscopic Roux-en-Y gastric bypass or sleeve gastrectomy. All of them had not attended follow-up with the multidisciplinary healthcare team (including psychological assessment) for at least one year. RWR was calculated with respect to maximal weight loss by the nadir weight achieved after surgery. Patients were divided into two groups: high RWR (≥20%) or low RWR (<20%). At their first visit, we had them complete the Eating Disorder Examination and Repetitive Eating Questionnaires (EDE-Q and Rep(eat)-Q).

Results: Patients with high RWR reported higher EDE-Q global, dietary restraint and weight concerns without significant group differences in eating and shape concerns. Compared to those patients with low RWR, these patients also indicated greater Rep(eat)-Q global, compulsive grazing and repetitive eating. Global EDE-Q score, eating concern, shape concern, weight concern and all Rep(eat)-Q indexes were positively associated with higher RWR.

Conclusions: Disordered EBs occurred more frequently in the group with high RWR. In these patients, eating behavior symptoms and grazing behavior were both correlated to the RWR, suggesting a possible involvement of both conditions in weight regain.

Keywords: bariatric surgery; eating disorder; time since surgery; weight regain.

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Conflict of interest statement

The authors declare no conflicts of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results.

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