We read with great interest the article by Blackburn and coworkers1 in the June 2010 issue of the Archives. In this article, they suggest that when administered in conjunction with early and adequate feeding, it is reasonable to provide exogenous insulin to achieve glucose values of less than 150 mg/dL (to convert to millimoles per liter, multiply by 0.0555) for at least the first 3 days in critically ill patients.