Figure 4: Effect of low protein diets on plasma hormone concentrations.
From: Low protein diets produce divergent effects on energy balance
(a) Peptide YY (PYY), (b) glucose-dependent insulinotropic peptide (GIP), (c) amylin, (d) insulin, (e) C-Peptide, (f) glucose, (g) fibroblast growth factor 21 (FGF21) and (h) leptin concentrations in obesity-prone rats. The animals were fed either a control (15% protein; 15P), moderately low protein (10% protein; 10P), very low protein (5% protein; 5P) or protein-free (0% protein; 0P) isocaloric diet for 14 days. Values are mean ± SEM, n = 5–9. *P < 0.05 vs 15P.
