About the Author
Dr. Gregory D. Clark has a degree in organic chemistry. He has studied the use of natural botanical materials for 17 years and worked to understand the philosophy behind how botanicals are used in different cultures around the world. Dr. Clark has been a vegetarian (vegan) for 16 years and has given numerous presentations on the role that good nutrition plays in overall health. Marcelynn Clark has a bachelor's in microbiology and is a small business owner. She conducts health and fitness seminars for community organizations, churches, and youth groups. Marcelynn is an avid writer and has published numerous articles on parenting and science education.