In this article, Dr. Kunin writes about the practice of orthomolecular medicine, describing how it works, its basic principles and diagnostic methods, the types of conditions that benefit most from its methods, and both its history and prospects for the future. It's everything you need to know to understand the therapy. He includes a reading list by other authors for those craving more on the topic.
Article from Alternative Medicine: The Definitive Guide, (Celestial Arts, 2002); Burton Goldberg (editor); pp 406-412.
Available as a free downloadable PDF.