Discovery and Establishment of OLETF Rats......................................................209 Clinical Features ....................................................................................................210 Oral Glucose Tolerance Test .................................................................................212 Insulin Resistance ..................................................................................................212 Abdominal Fat by Magnetic Resonance Imaging (MRI) .....................................214 Triglyceride (TG) Store in the Pancreatic Islets ...................................................214 Visceral Fat Weight................................................................................................215 Intestinal Monoacylglycelol Acyltransferase (MGAT) Activities.........................215 Blood Pressure .......................................................................................................215 Cholecystokinin (CCK)-A Receptor Gene............................................................215 Diabetic Nephropathy............................................................................................216 Effects of Food Restriction ...................................................................................216 Protein Loading .....................................................................................................217 Discussion and Concluding Remarks....................................................................218