Based on the previous study [39], in obese non-diabetic individuals, showing that Bdiet schedule vs. Ddiet significantly reduced overall postprandial glycemia; and on the studies reporting that breakfast consumption vs. skipping breakfast in T2D lead to reduced PPHG and greater and faster postprandial insulin and GLP-1 responses and after subsequent meals [43,56]; we further tested in T2D patients whether the Bdiet schedule reduces overall postprandial glycemia by enhancing prandial GLP-1 and insulin responses compared to the Ddiet schedule [35] (Figure 6). The gene discussed is GCG; the disease is type 2 diabetes mellitus.