Association Between Habitual Food Intake and Energy Metabolism-Related Urine Metabolites in Female Soccer Players

To assess the association between habitual nutrients intake and the energetic metabolism-related metabolites found by nuclear magnetic resonance (NMR) in female soccer players' urine.Thirteen female soccer players were measured for habitual food intake 11 days before the competitive season, and had urine samples collected pre- and post-match during five matches of two simultaneous championships to be examined by NMR. Nutrients and metabolites were associated through univariate and multivariate analyses. B3, B6, Prot.kg and energy (Kcal.kg) with leucine; B1, B3, B6, energy (Kcal.kg) and Prot.kg with AHI, glucose, tyrosine; formate and 1-Methylnicotinamide. In parallel, inverse correlations were observed between B3, B6, and Prot.kg with creatinine, B12 and 1-Methylnicotinamide (r ≥ 0.4; p < 0.05). In conclusion, it is possible to speculate that the herein described associations between metabolites and nutrients involved in energy metabolism seem to result from their participation in oxidative pathways, mainly in the TCA cycle and in gluconeogenesis.