Results obtained from gastrocnemius muscle samples from all experimental groups: (a) gastrocnemius muscle polar extract PLS–DA plot score; gastrocnemius muscle polar extract identified metabolites, as normalized concentrations (µM); (b) 2-deoxyuridine; (c) nicotinurate; (d) NAD+ and NADP+; (e) muscle non-polar extract PLS–DA plot score. Legend: C, Control group (n = 7–8); W, Tumor-bearing group (n = 7); L, Group without tumors and with a maternal leucine-rich diet (n = 7–8); WL, Tumor-bearing group with a maternal leucine-rich diet (n = 8). For more details, see Material and Method section. a, p < 0.05 for statistical difference compared to C group; b, p < 0.05 for statistical difference compared to L group.