Nutrition Detectives Program, Yale-Griffin Prevention Research Center, 130 Division Street, Derby, CT 06418, USA.
J Sch Health. 2011 Jan;81(1):21-8. doi: 10.1111/j.1746-1561.2010.00553.x.
The purpose of this study was to evaluate the effects of a nutrition education program designed to teach elementary school students and their parents, and to distinguish between more healthful and less healthful choices in diverse food categories.
Three schools were assigned to receive the Nutrition Detectives™ program and 2 comparable schools served as controls. A total of 1180 second, third, and fourth grade elementary school students were included, with 628 students in the intervention and 552 in the control group. The program, delivered by physical education instructors over several sessions totaling less than 2 hours, taught the children how to read food labels and detect marketing deceptions, while learning to identify and choose healthful foods. Parents were introduced to the program through written materials sent home and at school functions. Assessments included a food label quiz, dietary pattern, and body mass index (BMI).
Students in intervention schools showed a significant increase in nutrition label literacy (p < .01). Third grade students showed the most improvement, 23% (p < .01). The parents of intervention group students also showed a significant increase in nutrition label literacy by 8% (p < .01). Total caloric, sodium, and total sugar intake decreased nonsignificantly among students in the intervention group (p > .05). BMI did not change over the short duration of the study.
Nutrition Detectives effectively enhances the ability of students and their parents to identify more nutritious food choices. Further evaluation of the program and its potential to influence dietary pattern, BMI, and health outcomes in students and their families is warranted.
本研究旨在评估一项营养教育计划的效果，该计划旨在教导小学生及其家长，区分不同食品类别的更健康和不太健康的选择。
三所学校被分配接受营养侦探™计划，两所可比的学校作为对照组。共有 1180 名二、三、四年级小学生参与，干预组 628 人，对照组 552 人。该计划由体育教师通过几次课程（总时长不到 2 小时）教授，教孩子们如何阅读食品标签和发现营销骗局，同时学习识别和选择健康食品。家长通过寄回家和在学校活动中提供的书面材料了解该计划。评估包括食品标签测验、饮食模式和体重指数（BMI）。
干预学校的学生在营养标签读写能力方面有显著提高（p<.01）。三年级学生的进步最大，提高了 23%（p<.01）。干预组学生家长的营养标签读写能力也显著提高了 8%（p<.01）。干预组学生的总热量、钠和总糖摄入量虽无显著变化（p>.05）。在研究的短时间内，BMI 没有变化。
营养侦探有效地提高了学生和家长识别更有营养的食物选择的能力。需要进一步评估该计划及其对学生及其家庭的饮食模式、BMI 和健康结果的潜在影响。
