Andrew Gaeddert began his studies with master herbalists from both the United States and China. He is founder and president of Health Concerns, the first company in America to produce traditional Chinese formulas for professionals. In addition to being an internationally recognized authority on herbal medicine, Mr. Gaeddert is a lecturer and the author of numerous books. He has contributed research and articles to publications such as Townsend Letter for Doctors and Patients, Acupuncture Today, Oriental Medicine, ASNY Journal and Meridian Times.

Since 1992, Andrew has been involved in researching the effects of herbs on gastrointestinal and immune disorders. He has worked with the University of California, the University of Zurich, and NCCAM (National Center for Complementary and Alternative Medicine). Mr. Gaeddert assisted in the development of a double-blind clinical trial with HIV patients, a study that marked the first time an herbal formula was thoroughly evaluated in the U.S. He served on the protocol team of a study to investigate the effects of Chinese herbs on chronic diarrhea, as well as an anemia study sponsored by the National Institute of Health (NIH) Office of Alternative Medicine. He was also regional coordinator for Citizens for Health, which was instrumental in the passage of DSHEA and saving Chinese herbs from extinction in the United States. In his professional practice, he has helped thousands of practitioners help their patients through the Herbal Helpline®. The Herbal Helpline® is a resource for practitioners to present their questions about herbs and patient treatment. 

           Mr. Gaeddert is a lecturer and the author of several books including Healing Digestive Disorders, Healing Immune Disorders, Healing Skin Disorders, Digestive Health Now, and Chinese Herbs in the Western Clinic.