The Medical University of Vienna (MUW) is the largest medical organisation in Austria, as well as one of the top-level research institutions in Europe and provides Europe’s largest hospital, the Vienna General Hospital (AKH), with all of its medical staff. The Medical University of Vienna is one of Europe’s oldest and most prestigious medical schools, renowned for excellence in research, education, and clinical care. The Center for Medical Data Science coordinates the nutritionDay initiative, driving research, managing nDay audits in multiple healthcare settings, and leading training programs. Through these efforts, helps units worldwide to benchmark nutrition practices, implement evidence-based improvements, and promote high-quality patient nutritional care.