Effects of low glycemic index staple food on postprandial blood glucose in gestational diabetes mellitus

Objective To study the effects of low glycemic index( GI) staple food on the postprandial blood glucose in gestational diabetes mellitus( GDM). Methods A total of 140 inpatients with GDM from three hospitals( Zhujiang Hospital of Southern Medical University,Guangzhou Red Cross Hospital and General Hospital of Guangzhou Military Command of PLA) were enrolled in the study and were randomized assigned into low GI group( n = 66) and control group( n =74). All patients were given with education and diet intervention. Fasting micro blood glucose and postprandial blood glucose of three meals were measured in all patients. Results In Low GI group,fasting blood glucose( FBG) and the postprandial blood glucose of breakfast( BPG),lunch( LPG) and dinner( DPG) were significantly reduced by 4. 3%, 20. 5%,21. 1% and 13. 0%,respectively after intervention( P 0. 05). So were the BPG,LPG and DPG in control group( 3. 0%,8. 6% and 7. 2%,respectively,P 0. 05). Except for FBG,significant alleviation in FBG,LPG and DPG was revealed in low GI group than those in control group( P 0. 05). Conclusion Low GI staple food is effective on postprandial blood glucose control in GDM patients.