Gestational diabetes mellitus (GDM) is a form of diabetes occurring during pregnancy which can result in short- and long-term adverse outcomes for women and babies. With an increasing prevalence worldwide, there is a need to assess strategies, including dietary advice interventions, that might prevent GDM. Very low-quality evidence from five trials suggests a possible reduction in GDM risk for women receiving dietary advice versus standard care, and low-quality evidence from four trials suggests no clear difference for women receiving low- versus moderate- to high-GI dietary advice. A possible reduction in pregnancy-induced hypertension for women receiving dietary advice was observed and no clear differences were seen for other reported primary outcomes. There were few outcome data for secondary outcomes.


  1. Hoppu UIsolauri ELaakso PMatomaki JLaitinen KProbiotics and dietary counselling targeting maternal dietary fat intake modifies breast milk fatty acids and cytokinesEuropean Journal of Nutrition2012;51(2):211-9

  2. Luoto RLaitinen KNermes MIsolauri EImpact of maternal probiotic-supplemented dietary counselling on pregnancy outcome and prenatal and postnatal growth: a double-blind, placebo-controlled studyBritish Journal of Nutrition2010;103(12):1792-9

  3. Clapp JFInfluence of endurance exercise and diet on human placental development and fetal growthPlacenta2006;27(6-7):527-34


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