PROBLEM TO BE SOLVED: To provide foods for inhibiting diabetes which exert a high inhibitory effect by containing amorphous paramylon in which useful effect is more improved than that in crystalline paramylum, the amorphous paramylon being obtained by amorphousizing crystalline paramylum.SOLUTION: The present invention relates to a food for inhibiting diabetes. The food for inhibiting diabetes containing as an active ingredient amorphous paramylon which is obtained by amorphousizing Euglena-derived crystalline paramylum can inhibit the onset of diabetes (particularly, type 2 diabetes) by inhibiting the increase of intrahepatic triglyceride and stimulating insulin secretion.SELECTED DRAWING: Figure 7