vicinity of the lower wall of the channel which is enhanced with further increase inWeissenberg number. For shear-thinning bio-fluids (power-law rheological index n 1) greater Weissenberg numberdisplaces the maximum velocity toward the upper wall. For shear-thickening bio-fluids the velocity amplitude is enhancedmarkedly with increasing Weissenberg number.Keywords: gastric bio-fluid mechanics; Carreau model; curved channel; peristalsis