To evaluate changes in glycemic control during a 2-wk diabetes summer camp program, fasting plasma glucose (FPG), glycosylated hemoglobin (GHb), and glycosylated serum protein (GSP) levels were measured in a group of 36 children at the beginning and end of camp. Average FPG and GHb were unchanged during the 2-wk period, but the average decrease in GSP (7%) was significant (P < 0.005). The results of this study indicate that a measurable improvement in diabetic control occurred in some children during the 2-wk summer camp program.