孕中期女性营养素补充剂使用状况分析

目的：了解孕期女性在怀孕期间各种营养素补充剂的使用情况，为进一步针对孕期营养指导和干预提供科学依据。方法：在北京医院产科常规查体的孕妇在孕22w记录3d的饮食记录，其中包含营养素补充剂的使用情况。计算出3d饮食及营养素补充剂中主要营养素的摄入量等。结果：孕期多种营养素补充剂的使用率均超过50％（其中钙62．7％、铁56．9％、锌55．6％、维生素A54．2％、B族维生素56．2％），钙的摄入量仍然偏低，平均为891．39±359．93mg／d，其它主要营养素的摄入量均达到推荐摄入量；但没有使用孕期营养素补充剂的孕妇，除了维生素c以外，多数营养素均低于中国居民膳食推荐摄入量。结论：营养素补充剂在孕妇每日饮食摄入中占据重要作用，孕期应合理补充。

Analysis on Usage of Nutrient Supplements in Mid-pregnant Women

Objective] To understand the usage of various nutrients supplements during pregnancy to provide scientific basis for preg- nancy nutrition guidance and intervention. Method] We chose pregnant women who did pregnancy check-ups in Beijing Hospital, did a 3d diet records in pregnancy 22w, which contained the usage of nutrient supplements, and then calculated the main nutrients in diet and nutri- ent supplements intake, etc. Result] Utilization rate of a variety of nutrition supplements during pregnancy were more than 50% （62. 7% of calcium, 56. 9% of iron, 55.6% of zinc, 54. 2% of vitamin A, 56. 2% of vitamin B group ） . Calcium intake, an average of 891.39±359.93 mg/d, was still low, while other major nutrients intake reached RNI. For pregnant women who didn＇t use the nutrients supplements during pregnancy, in addition to vitamin C, most of the nutrients intake were below the RNI. Conclusion] The nutrient supplements had an important role in daily dietary intake of pregnant women. There should be a reasonable intake of nutrients supplements during pregnancy.