Abstract: ObjectiveTo explore effects of diet nutrition guidance on nutrition status and pregnancy outcome among pregnant women.MethodsDuring the period of October 2012 through October 2013,500 healthy pregnant women participated in this study.According to the principle of voluntary,the pregnant women were randomly divided into an observation and a control group;the women in the observation group were given routine health guide and standardized individualized-dietary nutrition guidance and those in the control group were given routine prenatal health guidance.Then we analyzed the differences in nutritional status in late pregnancy and pregnancy outcome among the women of the two groups.ResultsCompared to the women in the control group,the women in the observation group had significantly lower weight gain during pregnancy and higher intakes of protein,folic acid,calcium,iron,and zinc(all P<0.05);the incidence of pregnancy-induced hypertension,macrosomia,and intrauterine growth delay were also significantly lower among the women in the observation group than among those in the control group(all P<0.05).ConclusionStrengthening dietary nutrition guidance during pregnancy among pregnant women could improve nutritional status and reduce the occurrence of adverse pregnancy outcome among the women.