Department of Agricultural Economics, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.
Am J Clin Nutr. 2011 Aug;94(2):562-70. doi: 10.3945/ajcn.111.013417. Epub 2011 Jun 15.
Growing concern over the relation between out-of-home eating and overweight has triggered the use of point-of-purchase (POP) nutrition information when eating out of the home. In canteens that offer various unhealthy choices, the posting of POP nutrition information has the potential to improve meal choices and dietary intakes.
The objective of this study was to increase the proportion of consumed meals that comply with recommendations for energy, saturated fat, sodium, and vegetable content by 5%.
A one-group pretest-posttest design was used. A total of 224 customers of 2 university canteens completed a questionnaire used for consumer profiling and 3-d food records to assess their meal choices and nutrient intakes. The 12 best meal combinations received star ratings and descriptors for nutrients or food groups that did not comply.
Reported meal choices in canteens and nutrient intakes did not improve after the intervention (P > 0.05). The nutritional profile of the meal choice, obtained from a qualitative and quantitative nutritional assessment of meals, mirrored the nutritional profile of all meals offered (P > 0.05) and not that of the recommended meals offered (P < 0.001). Meal choices were not compensated for later in the day (P > 0.05). The healthiest choices were made by participants with greater objective nutrition knowledge, stronger health and weight-control motives, and a greater openness to change meal choices at baseline (P < 0.05).
The posting of nutrition information in university canteens did not effectively change meal choices and nutrient intakes. Despite the intervention, meal choices were largely determined by meals offered. Therefore, nutrition-information interventions in canteens may be more effective with a healthier meal supply. This trial was registered at clinicaltrials.gov as NCT01249508.
人们越来越关注外出就餐与超重之间的关系，这促使人们在外出就餐时使用销售点（POP）营养信息。在提供各种不健康选择的自助餐厅中，张贴 POP 营养信息有可能改善用餐选择和饮食摄入。
本研究的目的是将符合能量、饱和脂肪、钠和蔬菜含量建议的所消耗餐的比例提高 5%。
采用单组前后测试设计。共有 2 所大学食堂的 224 名顾客完成了一份调查问卷，用于消费者特征分析和 3 天食物记录，以评估他们的用餐选择和营养素摄入量。对 12 种最佳餐组合进行星级评定，并对不符合营养素或食物组的描述符进行描述。
干预后，食堂报告的用餐选择和营养素摄入量没有改善（P＞0.05）。从对餐食的定性和定量营养评估中得出的餐食营养状况反映了所有供应餐食的营养状况（P＞0.05），而不是推荐餐食的营养状况（P＜0.001）。用餐选择不会在当天晚些时候得到补偿（P＞0.05）。在干预前，具有更高客观营养知识、更强的健康和体重控制动机以及更大的改变用餐选择意愿的参与者做出了更健康的选择（P＜0.05）。
在大学食堂张贴营养信息并没有有效地改变用餐选择和营养素摄入量。尽管进行了干预，但用餐选择在很大程度上还是由供应的餐食决定的。因此，在食堂进行营养信息干预可能会通过提供更健康的餐食供应而更有效。本试验在 clinicaltrials.gov 注册，编号为 NCT01249508。
