Gynostemma pentaphyllum Tea Improves Insulin Sensitivity in Type 2 Diabetic Patients
Study protocol. Lipid, kidney, and liver function tests were performed at week 0, 4, 6, and 10. Fasting plasma glucose and insulin were determined every second week. OGTTs (oral glucose tolerance tests) and were performed at baseline. SIGIT (somatostatin-insulin-glucose infusion test) was performed at the end of each treatment period.