Stern Dalia, Ng Shu Wen, Popkin Barry M
Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Duke-UNC Center for Behavioral Economics and Healthy Food Choice Research, Duke University, Durham, North Carolina.
Am J Prev Med. 2016 Feb;50(2):180-90. doi: 10.1016/j.amepre.2015.07.025. Epub 2015 Oct 1.
Little is known about where households shop for packaged foods, what foods and beverages they purchase, and the nutrient content of these purchases. This study describes volume trends and nutrient content (nutrient profiles, food and beverage groups) of household packaged foods purchases (PFPs) by store type.
Cross-sectional analysis of U.S. households' PFPs (Nielsen Homescan) from 2000 to 2012 (N=652,023 household-year observations) with survey weights used for national representativeness. Household PFP trends (% volume), household purchases of key food and beverage groups based on caloric contribution, and mean caloric and nutrient densities (sugars, saturated fat, and sodium) of household PFPs were analyzed by store type. Data were collected from 2000 to 2012. Analyses were conducted in 2014-2015.
The proportion of total volume of household PFPs significantly increased from 2000 to 2012 for mass merchandisers (13.1% to 23.9%), convenience stores (3.6% to 5.9%), and warehouse clubs (6.2% to 9.8%), and significantly decreased for grocery chains (58.5% to 46.3%) and non-chain grocers (10.3% to 5.2%). Top common sources of calories (%) from household PFPs by food/beverage group included: savory snacks, grain-based desserts, and regular soft drinks. The energy, total sugar, sodium, and saturated fat densities of household PFPs from mass merchandisers, warehouse clubs, and convenience stores were higher compared with grocery stores.
PFPs from stores with poorer nutrient density (more energy, total sugar, sodium, and saturated fat-dense), such as warehouse clubs, mass merchandisers, and convenience stores are growing, representing a potential U.S. public health concern.
对于家庭购买包装食品的地点、所购买的食品和饮料种类以及这些购买食品的营养成分，我们了解甚少。本研究按商店类型描述了家庭包装食品购买量的趋势以及营养成分（营养概况、食品和饮料类别）。
对2000年至2012年美国家庭包装食品购买情况（尼尔森家庭扫描数据）进行横断面分析（N = 652,023个家庭年度观察数据），使用调查权重以确保全国代表性。按商店类型分析了家庭包装食品购买量的趋势（体积百分比）、基于热量贡献的关键食品和饮料类别的家庭购买量，以及家庭包装食品的平均热量和营养密度（糖、饱和脂肪和钠）。数据收集时间为2000年至2012年。分析于2014 - 2015年进行。
2000年至2012年期间，大型零售商（从13.1%增至23.9%）、便利店（从3.6%增至5.9%）和仓储式会员店（从6.2%增至9.8%）的家庭包装食品购买总量比例显著增加，而连锁杂货店（从58.5%降至46.3%）和非连锁杂货店（从10.3%降至5.2%）的比例则显著下降。按食品/饮料类别划分，家庭包装食品中热量的主要常见来源（百分比）包括：咸味小吃、谷物类甜点和常规软饮料。与杂货店相比，大型零售商、仓储式会员店和便利店的家庭包装食品的能量、总糖、钠和饱和脂肪密度更高。
来自营养密度较低（能量、总糖、钠和饱和脂肪含量更高）商店的包装食品，如仓储式会员店、大型零售商和便利店，其购买量正在增加，这可能是美国公共卫生领域的一个关注点。
