[1] Tech Univ Munich, Inst Nutr Med, Klinikum Rechts Isar, D-80290 Munich, Germany
[2] Tech Univ Munich, Klinikum Rechts Isar, Diabet Res Inst, Helmholtz Zentrum Munchen, D-80290 Munich, Germany
[3] Tech Univ Munich, Klinikum Rechts Isar, Forschergrp Diabet, D-80290 Munich, Germany