Figure 2From: Effect of folate intake on health outcomes in pregnancy: a systematic review and meta-analysis on birth weight, placental weight and length of gestation Response of birth weight to supplementation with folic acid or 5-methyltetrahydrofolate. Abbreviations: a, 5-methyltetrahydrofolate versus placebo; b, 5-methyltetrahydrofolate and with fish oil versus fish oil; c, Bantu women; d White women.Back to article page