Reed Davis, Board Certified Holistic Health Practitioner (HHP) and Certified Nutritional Therapist (CNT), is an expert in functional lab testing and holistic lifestyle medicine. He is the Founder of Functional Diagnostic Nutrition® (FDN) and the FDN Certification Course with over 4,000 graduates in 50 countries. He details the limitations of the conventional lab work up and how to look at physiology in a more comprehensive way. He explains how functional diagnostic testing can sometimes reveal hidden health problems that are not addressed by conventional testing. It can also help optimize your nutrition.