Sigrid Hahn studied at the Justus Liebig University in Giessen at the Department of Nutrition and Home Economics and received her doctorate. The nutritionist has been teaching and researching for many years with a focus on dietetics, nutrition therapy and clinical nutrition. Since 2014, she has been teaching as a professor of dietetics at Fulda University of Applied Sciences in the Department of Oecotrophology. Sigrid Hahn is a member of the German Society for Nutritional Medicine (DGEM) and the Professional Association of Oecotrophology e. V. (VDOE).