Vyth Ellis L, Steenhuis Ingrid H M, Heymans Martijn W, Roodenburg Annet J C, Brug Johannes, Seidell Jacob C
Department of Health Sciences and The EMGO Institute for Health Care Research, VU University, Amsterdam, The Netherlands.
J Am Diet Assoc. 2011 Jan;111(1):131-6. doi: 10.1016/j.jada.2010.10.003.
This study investigated the effectiveness of labeling foods with the Choices nutrition logo on influencing cafeteria menu selection and the behavioral determinants of menu choices in work site cafeterias in the Netherlands. A cluster randomized controlled trial was conducted. Intervention cafeterias (n=13), where the Choices logo was used to promote healthier eating for a 3-week period, were compared with control cafeterias (n=12), which offered the same menu without the logo. Sales data were collected daily for 9 weeks, from March to May 2009. In addition, employees from one intervention and one control company completed an online questionnaire at baseline and after the intervention (n=368) in which the behavioral determinants of food choice (ie, attitude, self-efficacy, and intention) and logo use were measured. Generalized estimating equation analyses, χ² tests, t tests and linear regression analyses were performed. No nutritionally meaningful intervention effects were found in the sales of sandwiches, soups, snacks, fruit, and salads. Also, no significant differences in behavioral determinants were found. "Intention to eat healthier" and "paying attention to product information" were positively associated with self-reported consumption of foods with the Choices logo at lunch. The intervention did not have a significant effect on employees' lunchtime food choices. Labeling healthy choices might be useful for health-conscious employees in the volitional phase of behavior change. Further research should focus on the possible health benefits of menu reformulation in the catering sector.
本研究调查了在荷兰工作场所自助餐厅使用“选择”营养标识标注食品对影响自助餐厅菜单选择以及菜单选择行为决定因素的有效性。开展了一项整群随机对照试验。将在为期3周的时间里使用“选择”标识来促进健康饮食的干预自助餐厅（n = 13）与提供相同菜单但无该标识的对照自助餐厅（n = 12）进行比较。于2009年3月至5月期间，连续9天收集销售数据。此外，来自一家干预公司和一家对照公司的员工在基线期和干预后完成了一份在线问卷（n = 368），问卷中对食物选择的行为决定因素（即态度、自我效能和意图）以及标识使用情况进行了测量。进行了广义估计方程分析、χ²检验、t检验和线性回归分析。在三明治、汤品、零食、水果和沙拉的销售方面未发现具有营养意义的干预效果。在行为决定因素方面也未发现显著差异。“想吃得更健康的意图”和“关注产品信息”与午餐时自我报告的食用带有“选择”标识食品的情况呈正相关。该干预对员工午餐时间的食物选择没有显著影响。对处于行为改变意志阶段的有健康意识的员工而言，标注健康选择可能有用。进一步的研究应聚焦于餐饮行业菜单重新制定可能带来的健康益处。
