Weight-loss surgery benefits diabetes. In the May issue of The New England Journal of Medicine, Bariatric Surgery versus Intensive Medical Therapy for Diabetes-3 Year Outcomes. In short-term randomized trials (duration 1-2 years), bariatric surgery has been associated with improvement in type 2 diabetes mellitus. The study assessed outcomes 3 years after the randomization of 150 obese patient with uncontrolled type 2 diabetes to receive either intensive medical therapy alone, gastric bypass or sleeve gastrectomy. The goal was a glycated hemoglobin level of 6.0% or less. At the end of 3 years 91 percent of the patients completed the three year follow-up. In the medical therapy group 5% met the goal, sleeve gastrectomy met 24% and gastric bypass group met 38%. Quality-of-life measures were significantly better in the two surgical groups than in the medical group. There were no major late complications. The study concluded that among patients with uncontrolled type 2 diabetes, 3 years of intensive medical therapy plus bariatric surgery resulted in glycemic control in significantly more patients than medical therapy alone.