Rudd Center for Food Policy and Obesity, Yale University, New Haven, CT 06520-8369, USA.
Health Educ Behav. 2009 Dec;36(6):999-1011. doi: 10.1177/1090198108329998. Epub 2009 Feb 5.
Removing low nutrition snacks from schools is controversial. Although the objective is to decrease the consumption of these foods at school, some critics argue that children will compensate by eating more of these foods at home. Others worry that school-based obesity prevention programs will increase student preoccupation with weight. The present study examines these concerns. Three middle schools replaced snacks and beverages that did not meet nutrition guidelines, whereas three comparison schools made no systematic changes. Students were surveyed about dietary intake and weight concerns before and after implementation of the intervention. Findings indicate that removing low nutrition items from schools decreased students' consumption with no compensatory increase at home. Furthermore, there were no differences in students' reported weight concerns. These results support the value of strengthening school nutrition standards to improve student nutrition and provide evidence dispelling concerns that such efforts will have unintended negative consequences.
从学校移除低营养零食颇具争议。虽然这一举措的目的是减少学生在学校食用这些食品,但一些批评者认为,孩子们会在家中通过多吃这些食物来进行补偿。还有一些人担心,以学校为基础的肥胖预防计划会增加学生对体重的关注。本研究检验了这些担忧。三所中学用符合营养标准的食品替代了不符合营养标准的零食和饮料,而三所对照学校没有进行系统的改变。在干预措施实施前后,学生们接受了关于饮食摄入和体重担忧的调查。研究结果表明,从学校移除低营养食品会减少学生的食用量,而在家中没有出现补偿性的增加。此外,学生报告的体重担忧也没有差异。这些结果支持加强学校营养标准以改善学生营养的价值,并提供了证据,消除了人们对这些努力会产生意想不到的负面影响的担忧。