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Abstract Objective:To investigate the effect of individualized nutrition intervention on pregnant outcomes of women who wanted the second child. Method: A total of 600 women who wanted the second child and received service in the affiliated hospital of Chongqing institute of population and family planning science and technology from May 2016 to May 2018 were randomly divided into the observation group (300 cases)and control group (300 cases). The women in control group were given routine pregnancy guidance, and the women in observation group were additionally given individualized nutrition intervention, which included the management of body quality and rational supplement of nutrients, the diet guideline, aerobic exercise, and keeping good life styles. The Body weight, BMI, hemoglobin, serum level of fasting blood glucose, serum levels of calcium, iron and triglyceride of all included women were recorded, and their final pregnant outcomes were observed. Result: Before labore, the serum levels of hemoglobin ,fasting blood glucose, calcium, iron and triglyceride of women in observation group were significant lower than those of women in control group (P<0.05). The occurrence rates of premature rupture of membrane, fetal distress, hypertensive disorders complicating pregnancy, gestational diabetes mellitus, anemia, postpartum hemorrhage, macrosomia, and preterm birth of women in the observation group were all significant lower than those of women in control group (P<0.05). Conclusion: Individualized nutrition intervention during pregnancy can effectively improve the better pregnancy outcomes, and can provide guarantee for reducing the risk of the second pregnancy.
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