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Laparoscopic sleeve gastrectomy (LSG) results in significant, sustainable weight loss in obese individuals (body mass index (BMI) ≥40 kg/m² or BMI 35.0–39.9 kg/m² with major comorbidity). Average clinically expected % excess weight loss (%EWL) has been reported to be 56.1 % 1 year after LSG. Unrealistic weight loss expectations are purported to negatively impact treatment adherence and weight loss outcomes. This study examined the weight loss expectations of LSG candidates in Newfoundland and Labrador, Canada.

The Goals and Relative Weights Questionnaire was administered before the start of a bariatric surgery education session to 84 consecutive LSG candidates. Patients reported postoperative weight loss expectations in four categories: “dream”, “happy”, “acceptable”, and “disappointed …