Thomas G. Guilliams, PhD, earned his doctorate from the Medical College of Wisconsin (Milwaukee) where he studied molecular immunology in the Microbiology Department. Since 1996, he has spent his time studying the mechanisms and actions of natural-based therapies, and is an expert in the therapeutic uses of nutritional supplements. As the VP of Scientific Affairs for Ortho Molecular Products, he has developed a wide array of products and programs which allow clinicians to use nutritional supplements and lifestyle interventions as safe, evidence-based and effective tools for a variety of patients. Tom holds appointments as a Clinical Instructor at the University of Wisconsin School of Pharmacy and the George Washington University, and also lectures at University of Minnesota School of Pharmacy. He is the founder and director of the Point Institute, an independent research and publishing organization through which he has published several books describing evidence-based principles and protocols for the use of lifestyle and nutritional interventions. He lives outside of Stevens Point, Wisconsin with his wife and children.