Christos S. Mantzoros, MD, DSc, PhD h.c. mult. is a Professor of Medicine at Harvard Medical School and adj. Professor at the Boston University School of Medicine. He has also served as a Professor of Environmental Health at the Harvard School of Public Health. 

He currently serves as the Chief of Endocrinology, Diabetes and Metabolism at the Boston VA Healthcare System, and as the Director of Human Nutrition, which he created at Beth Israel Deaconess Medical Center (BIDMC), Harvard Medical School. 

He has performed groundbreaking research in several areas of nutrition and metabolism,  has published more than 1000 scientific papers and more than 275 chapters and reviews or editorials. His corpus has received 151,000 citations with an H-index of 148 and an i10 index of 576 (Google Scholar). As an editor, Dr. Mantzoros has published two books ( “Diabetes and Obesity” and “Nutrition and Metabolism” with more than two editions each). 

He has developed clinical programs and has presented at national and international meetings, receiving enormous recognition in the field, he currently edits the journal Metabolism (2-year impact factor 13.93; 4-year Cite Score 20.5, top 3% of Endocrinology and Metabolism journals, in contrast to lowest 20% when Dr. Mantzoros was appointed editor in chief). He serves on the editorial board of several scientific journals. 

Based on his many seminal contributions to the respective scientific fields, Dr. Mantzoros has been ranked as number 1 in the world in leptin and/or adipokine research, number 2 in adiponectin research, and in the top 0.1% of experts on obesity and NASH on ExpertScape, which objectively ranks scientists and institutions by expertise in more than 27,000 biomedical topics. He is also among the highest 1% of cited investigators in terms of citations and H index. 

For his research discoveries and public health service, Dr. Mantzoros has received four honorary PhDs, and has been awarded honorary professorships and visiting professorships by several universities worldwide. 

The International Hellenic University has named their Clinical Nutrition laboratories after him. 

He has or is supervising PhD thesis work in several nations worldwide (USA, Sweden, Germany, Greece, etc.) and is actively collaborating with many research groups worldwide. He has served as Associate Fellowship Program Director at BIDMC and later as Endocrinology, Diabetes and Metabolism Fellowship Program Founding Director at the Boston VA Healthcare System. He has taught undergraduate and postgraduate courses at the Medical School, and has directed and organized or co-organized several CME courses. He has also designed and/or organized training programs for medical trainees, pharmacy students and nursing students at the Boston VA Healthcare System. 

Dr. Mantzoros has been elected as a member of the ASCI and as a Fellow of the American College of Physicians and the American Association of Clinical Endocrinology.