The Metabolic Transition Between Fasting and Feeding Alters Aging‐Associated Metabolites, Lowers BCAAs, and Stimulates FGF21 Production in Humans. - Cagigas, Maria Lastra; Santiappillai, Nancy T.; Commissati, Serena; Fiorito, Giovanni; Masedunskas, Andrius; Rajakumar, Gayathiri; de Ciutiis, Isabella; Goldhamer, Alan; Kennedy, Brian K.; Hoy, Andrew J.; Fontana, Luigi (Aging Cell, 2025)