Renata Lüthold is a research assistant and PhD student in the team of Professor Streit at the Institute of Primary Health Care (BIHAM). She holds a master’s degree in Public Health Nutrition from the University of Sao Paulo, where she studied the relationship between vitamin D, gut microbiota, and cardiometabolic risk. At BIHAM her research is focused on primary care, optimization of polypharmacy and deprescribing.