Fermín I. Milagro leads a research group on Percision Nutrition at the Department of Nutrition, Food Science and Physiology, and the Center for Nutrition Research, at the University of Navarra (Pamplona, Spain). He also works at the CIBERobn, Madrid, Spain, and the Health Research Institute of Navarra (IdiSNA), Pamplona, Spain. He has extensive experience in nutrigenomics, nutrigenetics, miRNAomics, metagenomics, and epigenetics, with a special emphasis on nutrient–gene interactions in human, animal, and cellular models, specifically regarding the development of obesity, insulin resistance, NAFLD, and related metabolic diseases. His major research interests are gut microbiota, probiotics, non-coding RNAs, nutriepigenetics, nutrigenetics, inflammation, bioactive compounds, biomarkers, and precision nutrition.