Introduction:

bariatric surgery does not benefit all patients. Identifying severely obese patients who will succeed after bariatric surgery remains a challenge for the transdiciplinary team. The objective of this retrospective study was to analyze preoperative dietary factors that could predict a successful weight loss after bariatric surgery.

Methods:

the retrospective study included patients undergoing laparoscopic Roux-en-Y gastric bypass surgery as a procedure for severe obesity (n = 84). Patient demographics, comorbidities, dietary factors, and weight loss results were extracted from the electronic medical record.

Results:

type 2 diabetes mellitus (DM2) was associated with suboptimal weight loss after laparoscopic Roux-en-Y gastric bypass surgery.

Conclusions:

although bariatric surgery continues being the most effective treatment for patients with severe obesity, developing strategies to improve and maintain weight loss, especially in patients with DM2, is fundamental. Assessing the dietary characteristics of candidates for bariatric surgery is crucial.

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