Comparison of fat-free mass in super obesity (BMI ≥50 kg/m2) and morbid obesity (BMI <50 kg/m2) in response to different weight loss surgeries

The SO patients achieved excessive BMI loss similar to that of the MO patients, with more SO men choosing biliopancreatic diversion/duodenal switch. At a BMI of 37.3 kg/m2, the SO patients had a percentage of BF that was not different from that of the MO patients at 30.9 kg/m2. The fat-free mass losses correlated with the change in BMI.