Dr. Spreen is Director of The Nutrition Physician, a free nutrition information website dedicated to answering consumer questions about vitamins and nutrition. In the past, he has been a featured nutrition expert for both America Online and iVillage.com.

Dr. Spreen is a graduate of East Tennessee State University School of Medicine and also holds an M.B.A. from University of Tennessee. He practiced general medicine for 10 years in Jacksonville, FL before becoming a full-time diving coach for the 1996 U.S. National Diving Team and 1996 U.S. Olympics Diving Team.

Dr. Spreen has authored and co-authored several books including Smart Medicine for Healthier Living and Nutritionally Incorrect: Why the American Diet is Dangerous and How to Defend Yourself.