Metabolomics data of glycolysis metabolites comparing 35-day stored RBCs in SAGM with 35-day stored RBCs in PAGGGM. The boxplots show metabolite levels 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.