Health Promotion and Policy Research Unit, Department of Public Health, University of Otago, New Zealand.
Aust N Z J Public Health. 2012 Oct;36(5):446-51. doi: 10.1111/j.1753-6405.2012.00913.x.
Food labels to support healthier choices are an important potential intervention for improving population health by reducing obesity and diet-related disease. This study examines the use of research evidence about traffic light nutrition labelling in submissions to the Review of Food Labelling Law and Policy conducted in Australia and New Zealand.
Content analysis of final submissions to the Review and a literature review of documents reporting research evidence about traffic light labelling.
Sixty-two submitters to the Review were categorised as 'supporters' of traffic light labelling and 29 as 'opponents'. Supporters focused on studies showing traffic light labels were better than other systems at helping consumers identify healthier food options. Opponents cited evidence that traffic light labels were no better than other systems in this respect and noted a lack of evidence that they led to changes in food consumption. A literature review demonstrated that, as a group, submitters had drawn attention to most of the relevant research evidence on traffic light labelling. Both supporters and opponents were, however, selective in their use of evidence.
The weight of evidence suggested that traffic light labelling has strengths in helping consumers to identify healthier food options. Further research would be valuable in informing the development of an interpretive front-of-pack labelling system.
The findings have significant implications for the development of front-of-pack nutrition labelling currently being considered in Australia and New Zealand.
支持更健康选择的食品标签是通过减少肥胖和与饮食相关的疾病来改善人口健康的一个重要潜在干预措施。本研究考察了在澳大利亚和新西兰进行的食品标签法律和政策审查中使用有关红绿灯营养标签的研究证据。
对审查的最终提交内容进行内容分析,并对报告红绿灯标签研究证据的文件进行文献回顾。
对审查进行了 62 次提交的 62 名提交人被归类为红绿灯标签的“支持者”,而 29 名提交人被归类为红绿灯标签的“反对者”。支持者关注的是表明红绿灯标签在帮助消费者识别更健康的食品选择方面优于其他系统的研究。反对者引用了证据表明红绿灯标签在这方面并不优于其他系统,并指出没有证据表明它们导致了食品消费的变化。文献综述表明,作为一个群体,提交人提请注意了关于红绿灯标签的大多数相关研究证据。支持者和反对者在使用证据时都具有选择性。
证据的权重表明,红绿灯标签在帮助消费者识别更健康的食品选择方面具有优势。进一步的研究将有助于为制定解释性的预包装营养标签系统提供信息。
这些发现对澳大利亚和新西兰目前正在考虑的预包装营养标签的发展具有重大影响。