Dr. Nathan A Lewis is Orreco’s Clinical Performance Nutritionist and Lead Biomarker Scientist. He provides scientific analysis of blood biomarker data, devises biomarker protocols, and delivers personalized nutritional strategies that address injury prevention, wellness and recovery. He has worked with multiple Olympic medalists through four Olympic cycles at the English Institute of Sport and with numerous pro sport teams in the UK and USA including NBA, NHL, MLB, PGA Tour and UEFA. Nathan holds a PhD from the University of Surrey in Exercise Biochemistry and Physiology. He has published several peer-reviewed scientific papers and is a leading authority on redox homeostasis, antioxidants and overtraining syndrome.