包装正面五色营养标签（5-CNL）对购买食品营养质量的影响：一项实验研究。
Impact of the front-of-pack 5-colour nutrition label (5-CNL) on the nutritional quality of purchases: an experimental study.
作者信息
Julia Chantal, Blanchet Olivier, Méjean Caroline, Péneau Sandrine, Ducrot Pauline, Allès Benjamin, Fezeu Léopold K, Touvier Mathilde, Kesse-Guyot Emmanuelle, Singler Eric, Hercberg Serge
机构信息
Université Paris 13, Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre d'Epidemiologie et Biostatistiques Sorbonne Paris Cité (CRESS), Inserm U1153, Inra U1125, Cnam, COMUE Sorbonne-Paris-Cité, 74 rue Marcel Cachin, Bobigny, Cedex, F-93017, France.
Département de Santé Publique, Hôpital Avicenne (AP-HP), Bobigny, F-93017, France.
出版信息
Int J Behav Nutr Phys Act. 2016 Sep 20;13(1):101. doi: 10.1186/s12966-016-0416-4.
BACKGROUND
Front-of-pack (FOP) nutrition labelling has received growing attention from public health authorities, as a tool to promote healthier diets in the population. Recently, the French Health law introduced the principle of implementing a FOP nutrition labelling system. A scientific proposal has put forward the 5-Colour Nutrition Label (5-CNL), a five-category colour-coded summary system supported by research suggesting that it is well perceived and understood in the population. Our objective was to investigate the impact of the 5-CNL on the nutritional quality of purchases in experimental supermarkets.
METHODS
Participants (n = 901) were recruited using quota sampling between September and December 2015 and evenly distributed in three experimental conditions: 1) control situation; 2) Application of the 5-CNL on all food products in three specific sections: breakfast cereals, sweet biscuits and appetizers; 3) introduction of the 5-CNL accompanied by consumer information on use and understanding of the label. Main outcome was the nutritional quality of the shopping cart in the three sections combined, measured using the United Kingdom Food Standards Agency nutrient profiling system (FSA score).
RESULTS
Significantly higher mean nutritional quality of the purchased items per section were observed for the sweet biscuits category in the intervention combining the label + communication (overall FSA score 21.01 vs. 20.23, P = 0.02). No significant effects were observed for the general mean over the three sections combined or other food categories. The results observed on purchase may be related to the high level of recall, self-reported and objective understanding of the label that were observed in the intervention groups as they are pre-requisites for use of a label in purchasing situations.
CONCLUSION
These results suggest that the 5-CNL FOP nutrition label may have a limited impact on purchases, leading to healthier food choices in some food categories such as sweet biscuits.
TRIAL REGISTRATION
The trial was registered on Clinicaltrials.gov under the number NCT02546505 .
背景
包装正面（FOP）营养标签作为一种促进民众健康饮食的工具，已受到公共卫生当局越来越多的关注。最近，法国健康法引入了实施FOP营养标签系统的原则。一项科学提案提出了五色营养标签（5-CNL），这是一种五类颜色编码的汇总系统，研究表明该系统在民众中易于被感知和理解。我们的目的是调查5-CNL对实验超市中所购商品营养质量的影响。
方法
2015年9月至12月期间，采用配额抽样招募了参与者（n = 901），并将其平均分配到三种实验条件下：1）对照情况；2）在三个特定区域的所有食品上应用5-CNL：早餐谷物、甜饼干和开胃菜；3）引入5-CNL并附带消费者关于标签使用和理解的信息。主要结果是三个区域合并后的购物车营养质量，使用英国食品标准局营养成分分析系统（FSA评分）进行测量。
结果
在标签+宣传相结合的干预措施中，甜饼干类别的每个区域所购商品的平均营养质量显著更高（总体FSA评分为21.01对20.23，P = 0.02）。在三个区域合并后的总体平均值或其他食品类别中未观察到显著影响。在购买时观察到的结果可能与干预组中观察到的对标签的高回忆率、自我报告和客观理解有关，因为这些是在购买情况下使用标签的先决条件。
结论
这些结果表明，5-CNL FOP营养标签对购买行为的影响可能有限，仅在某些食品类别（如甜饼干）中导致更健康的食品选择。
试验注册
该试验在Clinicaltrials.gov上注册，注册号为NCT02546505 。
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