While making positive lifestyle changes are beneficial for everyone, some populations are more at risk for developing Type II Diabetes Mellitus than others. One of those populations are women with a history of gestational diabetes. A recently released study spanning ten years evaluated the impact of intensive lifestyle and metformin intervention in women with and without a history of gestational diabetes mellitus determined that the persisting long term risk can be reduced.
The short version of the results of this study can be found here
The full article can be found in this PDF: Lifelong Diabetes Risk Management Amongst Gestational Diabetic Patients