Implementation and impact of the ban on the sale of ultra-processed foods to minors in Mexico

墨西哥向未成年人销售超加工食品禁令的实施及影响

• 批准号: MR/X004171/1
• 负责人: Carolina Perez Ferrer
• 金额: $ 70.95万
• 依托单位: National Institute of Public Health INSP
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=MR%2FX004171%2F1
• 关键词: Implementation; impact; ban; sale; ultra

Childhood obesity continues to be a public health issue globally therefore, it is necessary to test and evaluate new prevention policies and interventions. This study will evaluate both the implementation and impact of a new and unprecedented law that bans the sale of ultra-processed foods to minors in the state of Oaxaca, Mexico. In a first stage we will survey and conduct interviews with implementation actors including ministry of health officials, municipal authorities and school directors. We will measure implementation outcomes, specifically whether the policy is acceptable to actors, perceived feasible to implement and relevant. Simultaneously, we will conduct a mystery client study where children and adolescents will attempt to purchase a banned product from selected community retailers and school canteens. With this study component we will be able to objectively measure adoption of the policy and whether it is being implemented with fidelity. If we find that over 20% of food retailers and schools have adopted the law (i.e. they do not sell ultra-processed foods to minors), then the study will progress to stage 2 where we will measure the impact of the law on children's diet and obesity prevalence. To do this, we will leverage data from from six waves of Mexico's National Health and Nutrition Surveys to estimate ultra-processed food consumption and obesity prevalence before and after the law came into effect (2020). This will be done for Oaxaca and comparison states where a similar policy has not been approved. The results of this study will show whether the policy is effective, whether it can be successfully implemented and potentially rolled-out to other geographies.

儿童肥胖仍然是全球公共卫生问题，因此有必要测试和评估新的预防政策和干预措施。这项研究将评估墨西哥瓦哈卡州一项史无前例的新法律的实施情况和影响，该法律禁止向未成年人销售超加工食品。在第一阶段，我们将调查并采访执行者，包括卫生部官员、市政当局和学校校长。我们将衡量实施结果，特别是该政策是否为行为者所接受，是否被认为实施可行且具有相关性。同时，我们将进行一项神秘客户研究，儿童和青少年将尝试从选定的社区零售商和学校食堂购买违禁产品。通过这项研究，我们将能够客观地衡量政策的采用情况以及政策是否得到忠实实施。如果我们发现超过 20% 的食品零售商和学校已经采用了该法律（即他们不向未成年人出售超加工食品），那么该研究将进入第二阶段，我们将衡量该法律对儿童饮食和肥胖患病率的影响。为此，我们将利用六轮墨西哥国家健康和营养调查的数据来估计法律生效（2020 年）前后的超加工食品消费和肥胖率。这将针对瓦哈卡州和尚未批准类似政策的比较州进行。这项研究的结果将表明该政策是否有效，是否可以成功实施并可能推广到其他地区。