Background The nutritional content of Americans’ shopping carts is suboptimal despite federal dietary guidance, in this case, the MyPlate consumer icon which displays desired proportions of vegetables, fruits, dairy, grains and protein foods for consumption. Consumers mention print advertising—such as weekly sales circulars—frequently as influencing their grocery shopping decisions. Methods To examine and describe the relative proportions of advertised foods aggregated into the MyPlate food grouping system, a content analysis of 9 209 foods advertised in 52 weekly supermarket newspaper sales inserts in 2009 from a local grocery chain was conducted in a Midwestern community. Results Overall, the protein foods group was most often represented in sales circulars (25% of total items), followed by grains (18%); dairy (10%); vegetables (8%) and fruits (7%). Less than 3% of sales advertisements were for dark green and red & orange vegetables. Over twice as much whole fruit versus 100% fruit juice was advertised (70% vs. 30%, respectively; P?
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机译：背景信息尽管联邦政府制定了饮食指南，但美国人购物车的营养成分并不理想，在这种情况下，MyPlate消费者图标显示了所需比例的蔬菜，水果，乳制品，谷物和蛋白质食品以供食用。消费者经常提及印刷广告（例如每周销售通告），因为这会影响他们的杂货店购物决定。方法为了检查和描述汇总到MyPlate食物分组系统中的广告食物的相对比例，在中西部社区对2009年从当地一家杂货连锁店的52家每周超市报纸销售广告中刊登的9 209种食物进行了内容分析。结果总的来说，蛋白质食品组最常出现在销售通告中（占总项目的25％），其次是谷物（占18％）;乳制品（10％）;蔬菜（8％）和水果（7％）。不到3％的销售广告是深绿色，红色和橙色蔬菜。整个水果的广告量是100％果汁的两倍（分别为70％和30％; P <0.001）。与秋季相比，秋季刊登的蛋白质食品和谷物的数量明显少于预期，冬季和春季刊登的深绿色蔬菜的投放量比夏季和秋季的投放量略多（P <0.05）。结论美国的平均饮食包括水果和蔬菜的消费不足，但蛋白质食品的消费过量，反映在每周销售通告中广告的食品类别的相对频率上。修改销售通告以代表更健康的食品组可能会保留零售利润（考虑到这些组的较高利润率），同时会促进遵守联邦饮食指南。
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