Nutrition and Lifestyle Assessment with Andrew Johnston; Author, Ironman Winner, Leukemia Survivor, and Twice Voted One of the Top 100 Trainers in the U.S. by Men’s Health. This program will teach and help you put into practice the Six Foundational Principles which make vibrant living more than the stuff of legends. The plan lists, in order of importance, the actions to be taken by the client to achieve optimal functioning and a healthy lifestyle.