Yu, C., et al. Therapeutic effects of tablet gypenosides on 32 patients with hyperlipaemia. Hu Bei Zhong Yi Za Zhi. China. 1993
Dr. Yu and his team studied the effects of gypenosides (the active ingredients in Jiaogulan) on 30 patients with hyperproteinemia. They found Jiaogulan to have an effectiveness averaging 87.6 % in lowering the LDL in these patients.