Diabetes is unquestionalbly reduced for those who undergo weight loss surgery. In a study conducted by Buchwald H, Avidor Y, Braunwald E, et al, entitled, Bariatric Surgery: A Systematic Review and Meta-analysis and published in the Journal of the American Medcial Aassociation, issue 292:1724-1737, 2004 has striking conclusions described in the following paragraph.

Weight loss surgery helps reduce the seriousness of all four of the diseases (diabetes, high blood pressure, high cholesterol and sleep apnea studied. Diabetes completely disappeared in 76.8% of the patients and was resolved or improved in 86%. High cholesterol improved in 70% of the patients. High blood pressure disappeared in 61.7% of patients and was resolved or improved in 78.5%. Obstructive sleep apnea, or breathing disturbances during sleep, disappeared in 85.7% of patients and was resolved or improved in 83.6% of patients.

Given the severity of these diseases, especially diabetes, weight loss surgery is certainly a justifiable and prudent decision.