The George Institute for Global Health, Sydney, NSW, Australia.
Med J Aust. 2014 Apr 7;200(6):340-4. doi: 10.5694/mja13.10049.
OBJECTIVE To define the changes in sodium levels of Australian fast foods between 2009 and 2012 overall, in major food subcategories and by company.
A comparison of mean sodium content was made across 4 years using t tests and mixed models.
Nutrient content data for fast-food menu items collected from company websites of six large Australian fast-food chains.
Mean sodium values in mg/100 g and mg/serve.
There were between 302 and 381 products identified each year. Overall, the mean sodium content of fast-food products decreased between 2009 and 2012 by 43 mg/100 g (95% CI, - 66 to - 20 mg/100 g), from 514 mg/100 g in 2009 to 471 mg/100 g in 2012. Mean sodium content per serving was not significantly different at 654 mg in 2009 and 605 mg in 2012 (- 49 mg; 95% CI, - 108 to + 10 mg), reflecting wide variation in the serving sizes of items offered each year. There was a small decline in sodium content over the 4 years across most food categories and food companies.
The observed reduction in the sodium content of fast foods during the 4-year study period is encouraging. However, the reductions are small, and fast-food companies should be encouraged to make further and larger reductions since many products still contain high levels of sodium.
总体上定义澳大利亚快餐食品中钠含量在 2009 年至 2012 年之间的变化，按主要食品亚类和公司划分。
使用 t 检验和混合模型对 4 年来的平均钠含量进行比较。
从澳大利亚六大连锁快餐公司的网站上收集快餐菜单项目的营养成分数据。
以毫克/100 克和毫克/份为单位的平均钠值。
每年分别确定 302 至 381 种产品。总体而言，2009 年至 2012 年间，快餐产品的平均钠含量下降了 43 毫克/100 克（95%置信区间，-66 至-20 毫克/100 克），从 2009 年的 514 毫克/100 克降至 2012 年的 471 毫克/100 克。每份的平均钠含量在 2009 年为 654 毫克，2012 年为 605 毫克（- 49 毫克；95%置信区间，- 108 至+ 10 毫克），这反映了每年提供的食品份量存在很大差异。在 4 年的研究期间，大多数食品类别和食品公司的钠含量都略有下降。
在 4 年的研究期间，观察到快餐食品中钠含量的减少令人鼓舞。然而，减少幅度很小，应鼓励快餐公司进一步大幅减少钠含量，因为许多产品仍含有高含量的钠。
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