Abstract:Objective To explore the method and effect of medical nutrition intervention for pregnant women with gestational diabetes mellitus (GDM) and its influences on the outcome of pregnancy so as to provide reference for clinical treatment.Methods A total of 160 GDM patients treated from January 2018 to January 2019 were randomly divided into control group and observation group( n=80,each).Based on the conventional pregnancy check-up and proper exercise guidance in two groups,medical nutrition intervention was given in observation group.The blood glucose and glycosylated hemoglobin (HbA1c) levels and maternal and infant outcomes were compared between two groups.Results Before intervention,there were no statistical differences in FPG,2hPG and HbA1c between two groups ( P>0.05).After intervention,the levels of FPG,2hPG and HbA1c significantly decreased compared with those before intervention in both groups and were statistically lower in observation group than those in control group( P<0.01).The incidence of pregnancy hypertension,excessive amount of amniotic fluid and macrosomia in observation group were significantly lower than those in control group ( P<0.05, P<0.01),and there was no statistical difference in the incidence of preterm birth and neonatal asphyxia between two groups ( P>0.05).ConclusionFor pregnant women with GDM,medical nutrition intervention can control blood glucose level effectively and reduce adverse pregnancy outcome for both mother and infant obviously.