Leon Isaac Drucker has been a student of Zen and the Martial Arts since 1964. His Judo Black belt was received in 1970 by his instructor and Legendary Judo Master Professor Takahiko Ishikawa. His close to 60 years of experience also includes training in Northern Shaolin Kung Fu, Yang Style Tai Chi Chuan, and Traditional Japanese Bujutsu.Mr. Drucker is a veteran of the United States Submarine Service. After his service in the U.S. Navy, he worked in the Electronics Industry as a Designer, Field Applications Engineer, Laser Qualification Engineer, and Consultant. In the mid 1980's he switched careers by returning to school and received his Doctorate in Nutrition. Mr. Drucker worked as a Nutritional Consultant for many of the top supplement manufacturers and saw patients with chronic health problems at his Functional Nutrition practice for over 20 years.