Sonia Andrés is a Scientist (permanent staff) at the Spanish National Research Council (Consejo Superior de Investigaciones Científicas, CSIC, Spain), with a Ph.D. in Veterinary Sciences (2003) (Universidad de León, Spain). She completed her postdoctoral studies in SRUC (2004–2005) (UK). After several years teaching at the University of León, from 2008 onwards she has been one of the scientists at CSIC involved in animal nutrition and production (ruminants). She has also progressed in the fields of feed efficiency, ruminal fermentation, microbiome, immunology, omics applied to animal production, and food quality. More recently, she is also interested in metabolic programming events during the early postnatal life.