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目的了解广州市预包装食品钠含量现状及消费者低盐饮食认知情况。方法抽取广州市4间连锁超市,记录783种预包装食品营养标签上的钠含量标示情况;随机抽取超市消费者271名,通过问卷调查其低盐饮食认知情况。结果预包装食品钠含量总标示率为99.36%,各类预包装食品的钠含量范围和中位值均有较大的差异,榨菜、方便面和肉制品的钠含量中位数分别为2 360 mg/100 g、1 988 mg/100 g和1 703 mg/100 g。关于低盐饮食,不同职业的消费者在接受低盐饮食的宣传渠道上有差异(χ2=14.20,P=0.048),消费者教育接受率为41.7%,态度正向选择率为89.50%,行为选择率为56.28%,知识平均知晓率为49.31%。结论随着GB28050-2011《食品安全国家标准-预包装食品营养标签通则》实施,预包装食品的钠含量标示率大幅度增加。然而,消费者的低盐饮食认知程度仍然较低,相关部门还应加强低盐饮食宣传教育。
Objective To understand the status quo of sodium content in prepackaged foods in Guangzhou and their cognition of low salt diet in consumers. Methods Four supermarket chains in Guangzhou were collected to record the sodium content of 783 kinds of pre-packaged food nutrition labels. A total of 271 supermarket consumers were randomly selected to investigate their cognition of low-salt diet through questionnaire. Results The total content of sodium in pre-packaged food was 99.36%. The range of sodium content and the median value of pre-packaged foods were all significantly different. The median sodium contents of mustard, instant noodles and meat products were respectively 2 360 mg / 100 g, 1 988 mg / 100 g and 1 703 mg / 100 g. Regarding the low-salt diet, consumers in different occupations had differences in the channels of receiving low-salt diet (χ2 = 14.20, P = 0.048), consumer education acceptance rate was 41.7%, and attitude toward positive selection rate was 89.50% The selection rate was 56.28% and the average knowledge rate was 49.31%. Conclusion With the implementation of GB28050-2011 “National Food Safety Standard - General Principles of Nutrition Labeling for Prepackaged Food”, the labeling rate of sodium content in pre-packaged foods has increased significantly. However, consumer awareness of low-salt diet is still low, the relevant departments should also strengthen low-salt diet publicity and education.