探究添加糖标签对澳大利亚父母购买食物行为的影响：一项在线随机对照试验。

Exploring the effects of added sugar labels on food purchasing behaviour in Australian parents: An online randomised controlled trial.

机构信息

Global Obesity Centre, Institute for Health Transformation, Deakin University, Geelong, Victoria, Australia.

Obesity Policy Coalition, Cancer Council Victoria, Melbourne, Victoria, Australia.

出版信息

PLoS One. 2022 Aug 25;17(8):e0271435. doi: 10.1371/journal.pone.0271435. eCollection 2022.

DOI:10.1371/journal.pone.0271435

PMID:36006973

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9409597/

Abstract

BACKGROUND

Evidence of the effects of front-of-pack added sugar labelling remains limited, especially for foods other than sugary drinks. More information is needed about which labels are likely to be most effective in reducing intended purchases of products with higher added sugar content in realistic contexts to inform policymakers' decisions.

OBJECTIVE

To determine the impact of added sugar labels on intended purchases of high sugar breakfast cereals, yoghurt, and non-alcoholic beverages.

METHODS

Australian parents who were regular purchasers of relevant product categories completed an online parallel randomised controlled trial from 31 August 2020 to 13 February 2021. Participants selected their intended purchase from 10 products in each of packaged beverages, breakfast cereal, and yoghurt categories after randomisation to one of seven added sugar labelling conditions in current use or under consideration by the Australian Government. Logistic regressions assessed differences between intervention and control conditions in the odds of intended purchases of a high sugar product.

RESULTS

2825 eligible participants were randomised with 2582 valid surveys analysed (Control n = 367; 'Nutrition Information Panel (NIP) with Added Sugar' n = 364; 'Teaspoons of Sugar' n = 369; 'Warning' n = 371; 'Health Star Rating (HSR) using Total Sugar' n = 368; 'HSR with Added Sugar' n = 371; 'Sugar in the Ingredients List' n = 372). No consistent effects were found on intended purchases of high sugar products overall or within product categories for any of the tested labels compared to controls (overall, 'NIP with Added Sugar': OR 1.00 [95%CI 0.83,1.20]; 'Teaspoons of Sugar': 0.94[0.80,1.11]; 'Warning': 1.10[0.93,1.30]; 'HSR with Total Sugar': 1.01[0.85,1.21]; 'HSR with Added Sugar': 1.09[0.92,1.30]; 'Sugar in the Ingredients List': 1.01[0.85,1.21]).

CONCLUSIONS

Findings reinforce the importance of ensuring nutrition labelling policies are introduced as part of a suite of interventions to influence both consumer and manufacturer behaviour.

TRIAL REGISTRATION

Australian New Zealand Clinical Trials Registry, ACTRN12620000858998. Registered 28 August 2020, https://anzctr.org.au/Trial/Registration/TrialReview.aspx?ACTRN=12620000858998.

摘要

背景

关于添加糖标签对除含糖饮料以外的食品购买意愿的影响，目前证据有限。为了向决策者提供决策依据，需要更多关于哪些标签在现实环境中最有可能有效降低高添加糖含量产品的购买意向的信息。

目的

确定添加糖标签对高糖早餐麦片、酸奶和非酒精饮料购买意愿的影响。

方法

2020 年 8 月 31 日至 2021 年 2 月 13 日，澳大利亚经常购买相关产品类别的父母完成了一项在线平行随机对照试验。参与者在包装饮料、早餐麦片和酸奶类别中随机分配到 10 种产品后，在接受目前使用的 7 种添加糖标签条件或澳大利亚政府正在考虑的条件之一的随机分组后，完成购买意愿调查。逻辑回归评估了干预条件和对照条件之间高糖产品购买意愿的差异。

结果

共有 2825 名合格参与者被随机分配，其中 2582 份有效调查进行了分析（对照组 n = 367；“营养信息面板（NIP）加添加糖” n = 364；“一汤匙糖” n = 369；“警告” n = 371；“健康星级评级（HSR）用总糖” n = 368；“HSR 加添加糖” n = 371；“配料表中的糖” n = 372）。与对照组相比，在所有测试标签中，总体上或在产品类别内，高糖产品的购买意愿都没有一致的影响（总体而言，“NIP 加添加糖”：OR 1.00[95%CI 0.83,1.20]；“一汤匙糖”：0.94[0.80,1.11]；“警告”：1.10[0.93,1.30]；“HSR 总糖”：1.01[0.85,1.21]；“HSR 加添加糖”：1.09[0.92,1.30]；“配料表中的糖”：1.01[0.85,1.21]）。