Westfall Miranda, Roth Sarah E, Gill Monique, Chan-Golston Alec M, Rice Lindsay N, Crespi Catherine M, Prelip Michael L
Department of Community Health Sciences, 8783UCLA Fielding School of Public Health, Los Angeles, CA, USA.
Department of Biostatistics, 8783UCLA Fielding School of Public Health, Los Angeles, CA, USA.
Am J Health Promot. 2020 Sep;34(7):713-721. doi: 10.1177/0890117120901430. Epub 2020 Jan 31.
MyPlate is the current dietary guidance icon meant to communicate healthy eating patterns. The purpose of this study is to evaluate knowledge of MyPlate nutrition education messages among middle school students and its association with dietary intake and perceived diet quality.
Secondary analysis of cross-sectional data.
Survey of eighth-grade students from 16 middle schools in California.
A total of 3521 eighth-grade students.
MyPlate knowledge was assessed with 3 questions asking how much of the plate in a typical meal should be (1) fruits and vegetables, (2) grains, and (3) proteins. A brief food frequency questionnaire measured intake of fruits, vegetables, sweets, salty snacks, fast-food, and sugar-sweetened beverages (SSBs) over the past 7 days. Students self-rated their diet quality as poor, fair, good, or excellent.
Hierarchical logistic regression models controlling for gender, ethnicity, and socioeconomic status.
Only 11% of students answered all MyPlate questions correctly. MyPlate knowledge was associated with 65% higher odds of not consuming SSBs, but 46% lower odds of not consuming sweets. MyPlate knowledge was not associated with adolescents' perceived diet quality or intake of salty snacks, fruits, or vegetables.
Knowledge of nutrition education messages communicated by the MyPlate dietary guidance icon is limited among adolescents. The association between MyPlate knowledge and lower consumption of SSBs is encouraging, given the strong association between SSBs and childhood obesity.
“我的餐盘”是当前用于传达健康饮食模式的饮食指导图标。本研究的目的是评估中学生对“我的餐盘”营养教育信息的了解情况及其与饮食摄入量和感知饮食质量的关联。
横断面数据的二次分析。
对加利福尼亚州16所中学的八年级学生进行调查。
共有3521名八年级学生。
通过3个问题评估对“我的餐盘”的了解，问题询问在一顿典型餐食中餐盘的（1）水果和蔬菜、（2）谷物、（3）蛋白质应占多少比例。一份简短的食物频率问卷测量了过去7天内水果、蔬菜、甜食、咸味零食、快餐和含糖饮料（SSB）的摄入量。学生对自己的饮食质量进行自我评定，分为差、一般、好或优秀。
采用分层逻辑回归模型，控制性别、种族和社会经济地位。
只有11%的学生正确回答了所有关于“我的餐盘”的问题。对“我的餐盘”的了解与不饮用含糖饮料的几率高65%相关，但与不吃甜食的几率低46%相关。对“我的餐盘”的了解与青少年感知的饮食质量或咸味零食、水果或蔬菜的摄入量无关。
青少年对“我的餐盘”饮食指导图标所传达的营养教育信息的了解有限。鉴于含糖饮料与儿童肥胖之间的密切关联，“我的餐盘”知识与较低的含糖饮料消费量之间的关联令人鼓舞。
