Behavioural interventions appear to improve weight loss at 12 months after bariatric surgery .
Background Significant , sustained weight loss through conventional , non-surgical interventions is often unattainable for people with severe obesity ( e.g. BMI ≥40 or ≥35 kg/m2 with co-morbidities ) .
Bariatric surgery is effective in treating severe obesity , but surgery alone without additional behaviour change management may not result in optimum long-term weight loss and maintenance .
This systematic review and meta- analysis of r and omised controlled trials evaluated the effectiveness of lifestyle interventions before and /or after bariatric surgery .
The effect of a low-carbohydrate, high-protein diet on post laparoscopic gastric bypass weight loss: a prospective randomized trial.
BACKGROUND Laparoscopic gastric bypass has become the st and ard surgical treatment for severe obesity in the United States . Less clear is what diet should be followed by these patients after surgery to maximize their weight loss . METHODS Patients undergoing laparoscopic gastric bypass procedures for morbid obesity were r and omly assigned to either a low-fat control diet based on American Heart Association recommendations or a low-carbohydrate , high-protein diet based on the South Beach Diet . One-on-one diet counseling with a bariatric nutritionist was provided preoperatively , postoperatively while in the hospital , and at postoperative clinic visits during the 12-month follow-up period . Investigators were blinded to diet assignment . Body composition including Body Mass Index ( BMI ) was recorded preoperatively and during postoperative visits at 3 , 6 , and 12 months . RESULTS Thirty-two patients were included in the analysis with 13 control and 19 low-carbohydrate , high-protein subjects . No demographic or clinical preoperative variables , including preoperative BMI , showed statistical differences between the two groups . Both groups demonstrated significant yet similar weight loss both by reduction in BMI ( at 12 months , low fat diet , -14.0 + /- 5.5 % versus low carbohydrate , -17.0 + /- 4.5 % ; P = 0.15 ) and excess body weight lost ( at 12 months , low-fat diet , -60.3 + /- 15.3 % versus low carbohydrate , -59.6 + /- 13.0 % ; P = 0.96 ) . CONCLUSIONS Based on this limited prospect i ve study , no weight loss advantage is observed in substituting a low-carbohydrate , high-protein diet in place of a st and ard low-fat diet in patients who have undergone laparoscopic gastric bypass surgery
Behavioural interventions appear to improve weight loss at 12 months after bariatric surgery .
Background Significant , sustained weight loss through conventional , non-surgical interventions is often unattainable for people with severe obesity ( e.g. BMI ≥40 or ≥35 kg/m2 with co-morbidities ) .
Bariatric surgery is effective in treating severe obesity , but surgery alone without additional behaviour change management may not result in optimum long-term weight loss and maintenance .
This systematic review and meta- analysis of r and omised controlled trials evaluated the effectiveness of lifestyle interventions before and /or after bariatric surgery .