Fig. 5

Assessment of glucose homeostasis and gut peptides in flour supplemented rats. Blood glucose concentration and area under the curve (AUC) of an intraperitoneal glucose tolerance test (IPGTT) in HFD-fed and WB and BF supplemented HFD-fed rats (n = 6–10 per group) (A). Blood glucose concentration and area under the curve of an ITT (n = 8–9 per group) (B). Portal vein active GLP-1 (n = 8–11 per group) (C) and PYY (n = 5–6 per group) (D) after a 5 h fast. Data presented as mean ± SEM; *indicate significance between WB and HFD, # indicate significance between BF and HFD, and $ indicate significance between WB and BF. *p < 0.05, **p < 0.01, ***p < 0.001 wheat group from HFD, #p < 0.05, ##p < 0.01 barley group from HFD, and $p < 0.05 wheat group from barley group