About Dr. Dennis Clark

Dr. Dennis Clark is a research scientist specializing in plant natural products chemistry and herbal medicine. He received his PhD degree in plant chemistry from the University of Texas and spent 30 years as a professor at Arizona State University. He has also been Visiting Professor at the University of Heidelberg (Germany) and the University of California at Riverside. He has written a college-level textbook on botany, several ebooks about natural approaches to health, and dozens of research articles in professional scientific journals. Dr. Clark enjoys teaching others about herbal medicine and other natural approaches to health..