Prof. Michail Chourdakis an Associate Professor of Medical Nutrition - Hygiene at the School of Medicine of the Aristotle University of Thessaloniki, Greece, where he started as a lecturer in 2014. He has studied both medicine (Mainz-Germany and Thessaloniki-Greece) and the discipline of nutrition and dietetics (Athens-Greece); he holds a Ph.D. in Medicine (with a scholarship from the Harokopio Foundation) and a Master of Public Health. He specializes in Family Medicine and conducted post-Ph.D. studies in Medical Nutrition in Austria and has worked at the Division of Metabolic and Nutritional Medicine (Dr. von Hauner Children’s Hospital at Ludwig, Maximillian’s-University of Munich) for 1 year (2013-14), having both clinical and scientific duties. He is the co-author of over 85 original publications, is the Editor of four books in Clinical Nutrition (including the Greek version of the ESPEN Blue book 4th and 5th editions), and of several chapters in clinical nutrition books in Greek, English, and German. He is a reviewer for over 12 peer-reviewed journals and serves as an assistant editor to two peer-reviewed journals. He is a member of various national and international societies, currently serving as the President of the Hellenic Society for Medical/Clinical Nutrition and Metabolism (GrESPEN) and was the IT-Officer of the European Society for Clinical Nutrition and Metabolism (ESPEN) between 2012-7. He currently serves as the Guidelines Officer for ESPEN (2020-24).