ObjectiveTo explore the effects of mindful eating intervention on the dietary adherence and surgical outcomes for patients after bariatric and metabolic surgery. MethodsA total of 124 obese patients who underwent bariatric and metabolic surgery in the First Affiliated Hospital of Nanjing Medical University from May 2023 to May 2024 were recruited by convenience sampling method. The patients were randomly equally divided into the observation group and the control group respectively. Mindful eating intervention and routine follow-up management were given in the two groups respectively. The dietary aderence and the effects of bariatric and metabolic surgery were compared between the two groups. ResultsA total of 124 patients were included based on sample size calculation, with 62 patients in each group. The baseline characteristics, including gender, age, body mass index (BMI), surgical approach, and comorbidities, showed no statistically significant differences between the two groups (P>0.05). The points of dietary compliance, dietary control, and fluid intake in the observation group were all better than those in the control group (P＜0.05), while there was no significant difference in the points of nutrient intake and eating habits between the two groups (P＞0.05). Over time, the differences in the points of dietary compliance, dietary control, and fluid intake between the observation group and the control group gradually increased (P＜0.05), while there were no significant differences in the points of nutrient intake and eating habits between the two groups (P＞0.05). The BMI, percentage of excess weight loss, and remission of comorbidities in the observation group were significantly better than those in the control group at 6 months after surgery (P<0.05), there was no significant difference in the incidence of postoperative complications between the two groups (P>0.05). ConclusionThe preliminary results of this study suggest that mindful eating intervention after bariatric and metabolic surgery can effectively improve patients’ dietary adherence and promote surgical results.