The loss of muscle mass and strength poses an increasingly significant challenge for an ageing society. Prof. Kristina Norman’s team at the German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE) has now shown that amino acid profiles could serve as promising biomarkers for muscle health in older people. These findings could help identify people at increased risk of sarcopenia earlier, enabling targeted interventions to enhance quality of life as people age. The results were published in the journal Biogerontology.