Higher plasma serine levels are associated with favorable values of metabolic health markers among middle-aged and older adults in The Maastricht Study. - Olsen T; Elshorbagy A; Tore EC; Bastani NE; Stolt E; Blokland GAM; Stehouwer CDA; Kooi ME; Jansen JFA; Eussen SJPM; Grootswagers P; Refsum H; et al. (GeroScience, 2026)