The Nutritrack Database: An annually updated database of information on packaged foods and beverages sold at major supermarkets in New Zealand (2013 to 2023)

<b>Overview: </b>Nutritrack is a database of annually updated information on packaged foods and beverages sold at major supermarkets in New Zealand.<b>Data collection methods: </b>Annual, systematic surveys were undertaken by trained fieldworkers in four supermarket stores in the Auckland region at the same time each year, enabling tracking of labelling, ingredients, and nutrient composition of New Zealand packaged food and beverage products over time, for the years 2013 to 2023 (inclusive).<b>Data quality: </b>Quality checks were undertaken on a random 15% sample of products where data entered in all product fields were compared with source photographs for accuracy. Reports were also run across all products to identify outlier values, ensure complete and correct nutrient data, and maximise consistency of the categorisation of products over time. Data accuracy across critical fields was monitored during and after data collection each year to maximise the accuracy of data collection and entry, and are available in the summary attachment.<b>Data ownership and access: </b>The Nutritrack database is owned and managed by The University of Auckland. The methods may be published if cited appropriately. Access to the data for external research collaborators has now closed. Access to the data for internal collaborators may be available - please contact the principal investigator with inquiries.<b>Further information: </b>Further information on data collection methods and database features is available as an attachment. A sample of the data is also available as an attachment.

<b>概述: </b>营养追踪（Nutritrack）是收录新西兰主要超市在售包装食品及饮料的年度更新信息的数据库。<b>数据采集方法: </b>每年同期，由受训实地调查员在奥克兰地区的四家超市门店开展年度系统性调查，覆盖2013至2023年（含首尾年份），可长期追踪新西兰包装食品饮料产品的标签信息、配料成分及营养组分的变化情况。<b>数据质量: </b>针对15%的随机产品样本开展质量核查：将各产品字段的录入数据与原始拍摄照片进行比对，以验证数据准确性；同时对全量产品生成核查报告，识别异常值，确保营养数据完整无误，并最大化不同时期产品分类的一致性。每年数据采集期间及采集后，均会对关键字段的数据准确性进行监控，以最大化数据采集与录入的精度，相关监控结果可参见汇总附件。<b>数据所有权与获取权限: </b>营养追踪（Nutritrack）数据库由奥克兰大学所有并管理，若引用得当，相关方法可予以发布。外部研究合作者的数据访问权限现已关闭；内部合作者如需获取数据，可联系首席研究员咨询相关事宜。<b>补充信息: </b>有关数据采集方法与数据库功能的更多信息可通过附件获取，数据样本也可通过附件获取。