摘要
目的分析膳食指导对哺乳期妇女饮食营养状况和乳汁中锌、铜、镁含量的影响。方法采取自身前后对照的实验方法,对南宁市50名健康哺乳期妇女进行24h膳食指导及调节,并同时收集乳汁,测定其锌、铜、镁的含量。结果哺乳期妇女膳食结构中部分膳食摄入相对不均衡,粮谷类、蛋类、大豆、水果类及乳制品摄取量均较低,干预后水果和乳制品类摄入量显著增加(P<0.05)。哺乳期妇女部分营养素摄入不足,能量、维生素A、硫胺素和核黄素、钙、锌和镁的摄入量分别为推荐摄入量(RNI)的84.62%、73.20%、82.22%、79.41%、49.46%、67.63%和77.46%,干预后钙、锌和镁的摄入量分别达到RNI的62.26%、77.40%和94.12%,较干预前明显增加(P<0.05),其他营养素均达到RNI或适宜摄入量(AI)标准。干预前三大产热营养素中碳水化合物供能比例偏低,脂肪供能比例偏高,干预后碳水化合物的供能比例显著增加(P<0.05)。膳食指导后母乳中锌含量增高(P<0.05),而铜和镁的含量变化不明显(P>0.05)。结论通过膳食指导,可以改善哺乳期妇女的膳食营养状况,促进和提高其矿物质的摄入量,并提高乳汁中锌的含量,但乳汁中铜和镁的含量变化不明显。
Objective To explore the effect of dietary intervention on the dietary nutrition status of lactating women and the concentrations of zinc, copper, and magnesium in breast milk. Methods Fifty lactating women from Nanning city participated in the study and were given nutrition instruction. Maternal nutrient intakes were collected from 24-hour dietary recalls. Their dietary records and the concentrations of zinc, copper and magnesium in the milk of lactating women were analyzed. Results Some components of diets of lactating women were not rational, their diet- ary intakes of energy, VA, VBl , VB2, Ca, Zn and Mg were 84. 62%, 73.20%, 82. 22%, 79. 41% , 49.46%, 67.63% and 77.46% of recommended nutrient intake（ RNI）, respectively. The women had high levels of fat intake and low levels of carbohydrate intake. When mothers were given instruction, their intakes of calcium, zinc and mag- nesium increased and thus reached 62. 26%, 77.40% and 94. 12% of RNI, respeetively（P 〈0. 05）. The levels of carbohydrate intake also improved. The analysis of mineral content in breast milk showed： zinc content was signifi- candy higher than before. Other minerals showed no differences. Conclusion The dietary intervention can improve the lactating women＇ s nutritional status and the zinc content in their breast milk.
出处
《中国临床新医学》
2013年第6期583-586,共4页
CHINESE JOURNAL OF NEW CLINICAL MEDICINE
基金
广西教育厅资助项目(编号:201106LX105)
关键词
膳食营养
母乳
锌
铜
镁
Dietary nutrition
Breast milk
Zinc
Copper
Magnesium
