Fig. 2

Effects of Clinacanthus nutans after 7 weeks of intervention on oral glucose tolerance test (a) and glucose area under the curve using trapeziol rule (b) in high fat and high cholesterol diet-fed Sprague–Dawley rats. Bars and error bars represent means ± SD (n = 7/group). Bars with different letters in each panel indicate statistical difference (p < 0.05). Groups are the same as Fig. 1