Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPAZ, Madrid, Spain; Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", Madrid, Spain. Electronic address: tiagojer.pedendo@gmail.com. Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPAZ, Madrid, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain. Departments of Pediatrics & Pediatric Endocrinology, Hospital Infantil Universitario Niño Jesús, Research Institute "La Princesa", Madrid, Spain; Department of Pediatrics, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain; Centro de Investigación Biomédica en Red de Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain; IMDEA Food Institute, CEIUAM+CSI, Madrid, Spain. Electronic address: jesus.argente@uam.es. Department of Preventive Medicine and Public Health, School of Medicine, Universidad Autónoma de Madrid/IdiPAZ, Madrid, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, Spain; IMDEA Food Institute, CEIUAM+CSI, Madrid, Spain. Electronic address: fernando.artalejo@uam.es.