Berberine as an alternative to Metformin

Metformin (Glucophage) is currently a popular drug prescription for treating Type 2 Diabetes and Polycystic Ovary Syndrome. However 3 clinical trials from Chinese researchers suggest that Berberine, a substance found in several plants and historically used medicinally, is as good or better than Metformin. Summaries of the 3 studies and their references are listed below.