He is the Associate Director of the Medical Wellness Center. He is also a Scientific Investigator at the Corporación de Lucha Contra el SIDA and the Fundación Valle del Lili in Cali, Colombia. Dr. Lewis is the principal investigator of several nutrition, dietary supplement, and exercise studies. Dr. Lewis has co-authored more than 110 peer-reviewed scientific articles, has been an invited speaker at multiple international and national conferences, and has mentored many undergraduate, graduate, and medical students in exercise, nutrition, and health promotion. In addition to his professional accomplishments, he is a former athlete and competitive body builder, who maintains a very rigorous training regimen and has eaten a whole-food, plant-based diet for over 17 years.