Plasma metabolite responses to an oral protein tolerance test differ between young and sarcopenic participants and suggest altered anabolic sensitivity
Tim Havers, Sebastian Martini, Maximilian Hillgaertner, Gautam Rana, Martin Schönfelder, Moritz Eggelbusch, Michael A. Witting, Dominik Lutter, Guelsah Erdogan, Karsten Koehler, Philipp Baumert, Stuart M. Phillips, Stephan Geisler, Michael Drey, Henning Wackerhage
This study uses an oral protein tolerance test combined with metabolomics to show that sarcopenic older adults have slower postprandial decline in essential amino acids compared to young controls, suggesting altered anabolic sensitivity.
bioRxiv · Jul 3, 2026 · PreprintPhysiology