OBJECTIVE – The role of health promotion for patients with impaired fasting glucose on preventing or delay the progression of diabetes mellitus has not been widely investigated in Taiwan. The purposes of this study are to explore the nature history of prediabetes, to evaluate the incidence of DM in prediabetes and to establish the cohort of people with prediabetes. Further study will be based on this cohort to evaluate the effect of health promotion and to compare the concentration of certain protein in their serum, such as adiponectin.