Many people are interested in a more detailed explanation of Nutrition Response Testing.  The following article, written by Dr. Freddie Ulan, DC, CCN, provides a detailed description of the process and why it works.  Fred Ulan is a Clinical Nutritionist, and a highly skilled Nutrition Response Testing practitioner and teacher. He is the Director of the Natural Health Improvement Center, in upstate New York where he and his partner practice Nutrition Response Testing in service to their extensive local and international lay and professional clientele.