Luciana Hannibal is a Biochemist with specific training and expertise in vitamin B12 deficiency. She completed doctoral studies in Cellular and Molecular Biology in 2009 at Kent State University, USA. She then pursued postdoctoral research at the Cleveland Clinic, USA from 2009 to 2014. Luciana relocated to Germany in 2015 to establish a research group at the Center of Pediatrics and Adolescent Medicine, University Hospital Freiburg, Germany. Her research is focused on metabolism and cofactor enzymology. Her laboratory investigates clinical presentations and molecular mechanisms of vitamin B12 deficiency in two vulnerable populations, namely, patients with genetic disorders of vitamin B12 metabolism, and healthy individuals adhering to plant-based diets. Alongside her basic research laboratory, she is a principal investigator and co-investigator in pre-clinical and clinical studies on vitamin B12 deficiency and she leads a nationally registered translational metabolomics platform. She serves in the executive and scientific boards of EHOD (European Network and Registry for Homocystinurias; https://www.e-hod.org) and CluB-12 (https:// www.club-12.org), and as an Associate Editor for Biochemistry and Biophysics Reports.