More proof needed for weight-loss surgery: study

A gastric bypass or other type of weight-loss surgery can help diabetics who are moderately obese but more proof is needed before promoting them on a wider scale, a study said Tuesday.

"Bariatric surgery for diabetic people who are not severely obese has shown promising results in controlling glucose," said Melinda Maggard-Gibbons, the study's lead author and a surgeon at the University of California, Los Angeles.