By Linda Thrasybule (Reuters Health) – Overweight adults with type 2 diabetes who can maintain their current weight may reduce their health care costs in the long term, a recent study suggests. From 2010 to 2013, researchers looked at whether maintaining weight, along with keeping blood sugar under control, had an impact on health care costs for people with type 2 diabetes. By comparison, those who gained weight and had uncontrolled blood sugar had an average cost increase of $1,473.