Gymnema Sylvestre is another herb whose traditional use in treating diabetes has been backed up by recent medical research. Scientists think its active ingredients --called gymnemic acids -- protect the cells of the pancreas from free radical damage, so allowing them to regenerate and produce insulin more effectively (Nutrition 2004; 20(3): 280-285). Studies have shown that gymnema can also reduce glucose absorption from the intestine, so helping to regulate blood sugar levels. A recent Harvard study indicates the Gymnema lowers blood sugar levels in Type 1 and Type 2 diabetics. A recent King's College, London, study states that Gymnema acts by increasing cell permatibility, therefore reducing insulin resistance.