Only a subset of overweight and obese individuals develops insulin resistance, type 2 diabetes and related diseases (Stefan et al. 2008, Bluher 2010). These "healthy" obese subjects are characterized of less adipose tissue inflammation and less insulin resistance as compared to unhealthy obese individuals. Consequently it would be of great importance to develop markers or predictors that could discriminate between "healthy" and unhealthy obese subjects in order to made a better selection for more invasive treatment such as e.g. surgery, pharmacotherapy etc.