GHRL and diabetes mellitus: The results of post hoc test indicated that plasma ghrelin concentration in obese diabetic (P = 0.001), diabetic (P = 0.001), normal weight diabetes with training (P = 0.001), obese diabetes control (P = 0.001) diabetic (P = 0.001), and normal control with diabetes (P = 0.001) was higher than normal control without diabetes.