Among secondary endpoints , a significant reduction of maternal insulin ( both in women with or without diabetes ) was observed in the probiotics group .
INTERPRETATION Probiotics during pregnancy do not reduce the incidence of GDM , with a very little ( statistically but not clinical ly significant ) reduction of fasting plasma glucose
AIM To perform a systematic review and meta- analysis of r and omized controlled trials ( RCTs ) to evaluate the effect of  probiotics in pregnancy on the  incidence of gestational diabetes ( GDM ) and fasting plasma glucose ( FPG ) .
Effects of probiotic supplements on insulin resistance in gestational diabetes mellitus: A double‐blind randomized controlled trial
Abstract Aims / Introduction To evaluate the effect of probiotic supplements on insulin resistance in pregnant women with diet‐controlled gestational diabetes mellitus . Material s and Methods A r and omized , double‐blind , placebo‐controlled trial was carried out between June 2016 and February 2017 . Pregnant women with diet‐controlled gestational diabetes mellitus were enrolled in the study at 24–28 weeks‐of‐gestation and r and omized to receive either probiotic supplements containing Bifidobacterium and Lactobacillus or a placebo daily for four consecutive weeks . Primary outcomes were mean differences in insulin resistance ( homeostatic model assessment for insulin resistance ) , fasting insulin and fasting plasma glucose between the two groups . Secondary outcomes were changes in maternal weight after the intervention . Results Data from 28 patients in the probiotic group and 29 in the placebo group were analyzed . The changes in metabolic parameters after r and omization showed significant improvement in glucose metabolism in the probiotic group compared with the placebo group , including fasting plasma glucose ( 0.68 ± 5.88 vs 4.620 ± 7.78 mg/dL , mean difference −3.94 mg/dL , 95 % confidence interval −7.62 , −0.27 , P = 0.034 ) , fasting plasma insulin ( 1.11 ± 1.71 vs 3.77 ± 1.70 mIU/L , mean difference −2.67 mIU/L , 95 % confidence interval −3.57 , −1.76 , P = 0.001 ) and homeostatic model assessment for insulin resistance ( 0.25 ± 0.37 vs 0.89 ± 0.46 , mean difference −0.63 , 95 % confidence interval −0.86 , −0.41 , P = 0.001 ) . Weight gain during r and omization was similar between the two groups . Conclusions Four weeks of probiotic supplements  in women with diet‐controlled gestational diabetes in the late second and early third trimester lowered fasting glucose and increased insulin sensitivity  . Probiotic supplements may be considered as an adjunct treatment for glycemic control in these patients
Among secondary endpoints , a significant reduction of maternal insulin ( both in women with or without diabetes ) was observed in the probiotics group .
INTERPRETATION Probiotics during pregnancy do not reduce the incidence of GDM , with a very little ( statistically but not clinical ly significant ) reduction of fasting plasma glucose
AIM To perform a systematic review and meta- analysis of r and omized controlled trials ( RCTs ) to evaluate the effect of  probiotics in pregnancy on the  incidence of gestational diabetes ( GDM ) and fasting plasma glucose ( FPG ) .