We complared the educationablity of the present food exchange system and food exchang system using '100 Ca;orie-exchange unit' in 10doctors, 10 dietitians, 10nurses and age, sex matched 12 diabetic patients. 1. Groups which were educated with 100 Calorie-exchange units' system scored higher understanding after education. 2. 100 Calorie-exchange unit' system proved to be simple and easy for the calculation of calories. 3)On three-day-food record the patients group educated by 100 Calorie-exchange unit' system showed more satisfied food consumption profiles, than the group using current food exchange system.