Metabolomics data of glycolysis-related metabolites comparing RBCs stored for 2 and 35 days in SAGM. The boxplots show metabolite concentrations in RBCs before transfusion. Line plots indicate the median with 25th and 75th percentile of metabolite concentrations over time in the recovered RBCs, up to 1 day after transfusion. *P < .05, **P < .01, and ***P < .0001; NS, not statistically significant.