Rapid improvement of glucose tolerance induced by PP Rapid improvement of glucose tolerance induced by PP. Glucose tolerance test was performed on day 2 after an overnight fast with obese C57Bl/6 mice on an HFD. Change of glucose levels after intraperitoneal injection of glucose (2 mg/g) (A), and AUC of glucose levels (B) on day 2. Rapid improvement of glucose tolerance induced by PP. Glucose tolerance test was performed on day 2 after an overnight fast with obese C57Bl/6 mice on an HFD. Change of glucose levels after intraperitoneal injection of glucose (2 mg/g) (A), and AUC of glucose levels (B) on day 2. Body weight and food intake were similar between HF-PP and HF-PF on day 1. HF-PP and HF-PF, n = 8. *P < 0.05. Dong-Hoon Kim et al. Diabetes 2012;61:2299-2310 ©2012 by American Diabetes Association