Dr Marcel Twickler is a highly distinguished consultant endocrinologist based in Antwerp, Belgium. He currently serves as the Head of the Department for Endocrinology, Diabetology, and Metabolic Diseases at AZ Monica. He earned his medical degree with summa cum laude honours in the Netherlands before completing his PhD jointly at Utrecht University and University Paris VI. Alongside managing his clinical department, Dr Twickler is a graduate training supervisor associated with Antwerp University and an active researcher with over 150 scientific publications. Significantly contributing to public health policy, he serves on the Belgian Superior Health Council (Hoge Gezondheidsraad) as a member of the standing working group on nutrition and health. His additional elite appointments include serving on the Clinical Endocrinology Update Committee for the global Endocrine Society and as a treasurer-council member for the European Society for Clinical Investigation.