Department of Behavioral Health and Nutrition, University of Delaware, Newark, DE; Center for Health Behavior Research, University of Pennsylvania, Philadelphia, PA.
Department of Behavioral Health and Nutrition, University of Delaware, Newark, DE; Department of International Health, Johns Hopkins University, Baltimore, MD.
J Nutr Educ Behav. 2021 Nov;53(11):957-965. doi: 10.1016/j.jneb.2021.07.010. Epub 2021 Aug 25.
Food shopping frequency may be an important modifiable factor related to increasing fruit and vegetable (FV) intake. Because of mixed findings of individual studies of shopping frequency, a systematic review is needed to examine findings across studies and store types.
To conduct a systematic review of articles examining the relationship between frequency of food shopping and FV intake including examination of participation in federal nutrition assistance programs on FV intake, if reported.
A search, guided by the Preferred Reported Items for Systematic Reviews and Metanalyses, using terms related to FV consumption and food shopping across 4 online databases, was conducted. Studies conducted in the US and published through October, 2020, included adults, and had a cross-sectional, longitudinal, cohort, or randomized study design were eligible for inclusion.
Twenty-four articles were included. The majority of studies found at least 1 positive finding between the frequency of food shopping and FV intake, indicating that as the frequency of food shopping increased, FV intake increased. In studies with 100% participation in government/federal nutrition assistance programs, participation was associated with FV intake. Studies that included participation as a subset found participation not associated with FV intake.
The frequency of shopping may be modifiable to increase FV intake. Experimental research is needed to test the directionality and causality of the relationship. Federal nutrition assistance programs may be a logical place to test the relationship through the adjustment of fund disbursements.
食品购买频率可能是与增加水果和蔬菜（FV）摄入量相关的一个重要可改变因素。由于个体研究中购物频率的研究结果存在差异，因此需要进行系统评价来检查研究和商店类型的研究结果。
对检查食品购买频率与 FV 摄入量之间关系的文章进行系统评价，包括如果有报告，检查参与联邦营养援助计划对 FV 摄入量的影响。
使用与 4 个在线数据库中的 FV 消费和食品购物相关的术语，根据系统评价和荟萃分析的首选报告项目进行搜索。符合条件的研究包括在美国进行的、发表于 2020 年 10 月之前的、针对成年人的横断面研究、纵向研究、队列研究或随机研究设计的文章。
共纳入 24 篇文章。大多数研究发现食品购买频率与 FV 摄入量之间至少存在 1 个正相关关系，这表明随着食品购买频率的增加，FV 摄入量也会增加。在 100%参与政府/联邦营养援助计划的研究中，参与与 FV 摄入量有关。包括参与作为子集的研究发现，参与与 FV 摄入量无关。
购物频率可能是可以改变的，以增加 FV 的摄入量。需要进行实验研究来检验这种关系的方向性和因果关系。联邦营养援助计划可能是通过调整资金发放来检验这种关系的合理场所。
