In subjects afflicted with insulin dependent diabetes mellitus, celiac disease is more diffuse than in normal people. The study has been done to a group of 93 diabetic children and teenagers who had undergone determination of antigliadine and antiendomysial antibodies. In the study the result of the celiac disease exceeds the data reported in the literature. The motivations of this result is discussed and the necessity to do immunological screening for celiac disease is requested. A possible intestinal biopsy of all diabetes in the beginning of the disease is recommended.