卫生研究

目的了解深圳市轻体力劳动集体用餐者膳食营养摄入状况。方法选择某单位从事轻体力活动的健康成年男女45人,通过称重记录,监测观察对象2个月内能量摄入的情况,结合《中国居民膳食指南》及中国居民膳食营养素推荐摄入量(RNI)标准进行评价。结果该集体人群的膳食不够合理,膳食结构简单,膳食纤维、维生素A、B1和微量元素钙、镁、铁、锌、铜、硒等与RNI/AI比较,其摄入值都过低,而烟酸,维生素C、E,锰,磷则都高于其RNI、AI值;膳食中三大营养素比例不适宜,摄入蛋白质比、脂肪比显著低于参考值,而碳水化合物比显著高于参考值。结论该人群能量、营养素缺乏和过剩并存,整体营养健康状况不容乐观。

Objective Nutrition survey on the collective who performs light physical activity.Methods Based on weighing records and two-months energy intake,combined with the Chinese Dietary Guidelines and Chinese Dietary Recommended Nutrient Intake(RNI),45 healthy volunteers were chosen to evaluate their current nutrient status.Results The dietary structure of the collective was simple and unreasonable.Some nutrients,such as dietary fiber,vitamin A,vitamin B1,vitamin B2,calcium,magnesium,iron,zinc,copper,selenium were lower than RNI/AI,while some others(niacin,vitamin C,vitamin E,manganese,phosphorus,etc.) were higher than the standards.The proportion of three nutritious elements in diet was not appropriate.Protein and fat intakes were less than the references obviously,while carbohydrates significantly higher than the reference.Conclusion The nutrition and health status of the volunteers was not so optimistic with the lack and excess coexist for nutrients and energy.