Steady-state glucose infusion rates (GIR) obtained from averaged rates of 90 to 120 min of 10% unlabeled glucose infusion (A), insulin-induced suppression of hepatic glucose production (HGP) (B), insulin-stimulated muscle glucose uptake (C), and insulin-stimulated adipose glucose uptake (D). Rats that received the chow diet and vehicle (C+Veh, n = 4), rats fed with a high-fat diet and supplemented with Alanina (H+Ala, n = 6) and rats fed with a high-fat diet supplemented with glutamine (H+Gln, n = 4). Values were displayed as mean ± SEM. One-Way-ANOVA with the Bonferroni post-test was used in A to D. * p < 0.05 vs. C+Veh and H+Ala; ** p < 0.05 vs. same group without insulin stimulation; # p < 0.05 vs. C+Veh.