Fig. 2

Effect of preconception nutrition supplements (iron and foilc acid, multiple micronutrients, and a lipidbased nutrient supplement) on maternal hemoglobin (g/dL). Forest plot depicting the overall pooled effect of preconception nutrition supplements (iron and folic acid, multiple micronutrients, and a lipid-based nutrient supplement) on maternal hemoglobin (g/dL). The blue squares represent individual RCT’s mean difference in maternal hemoglobin (g/dL) between intervention and control groups and horizontal black lines indicate corresponding 95% CIs. The maroon diamond represents pooled mean difference in hemoglobin (g/dL) between intervention and control arms and corresponding 95% CIs. * The hemoglobin data from Women First study, conducted in Pakistan, India, DRC, and Pakistan, is not published. The Principal Investigator of the Women First study granted permission to publish the data