Gentilcore et al. [18] highlighted that adding 30ml of olive oil as a preload 30 minutes before a mashed potato meal markedly slows gastric emptying; delays postprandial rises in blood glucose, plasma insulin, and stimulates the excretion of glucagon-like peptide-1 (GLP-1) in type II diabetic patients. Here, GCG is linked to type 2 diabetes mellitus.