Fruit and vegetable availability: a micro environmental mediating variable?
Fruit and vegetable availability: a micro environmental mediating variable?
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DOI：
10.1017/s1368980007441441
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发表时间：
2007-07-01
影响因子：
3.2
通讯作者：
Baranowski, Janice C.
中科院分区：
文献类型：
--
作者：
Jago, Russell;Baranowski, Tom;Baranowski, Janice C.
目的：探讨水果和蔬菜 (F&V) 可用性与消费之间的关联、对这种关联的可能影响、研究差距以及制定增加 F&V 消费策略的影响。设计：对检查 F&V 可用性与消费之间关联的研究进行系统回顾。结果：在儿童和成人中进行的定性研究表明，可用性越高，消费量越大。这一发现得到了儿童横断面研究的支持。可用性与饮食心理社会变量（例如偏好）相关，并且可用性似乎可以调节这些心理社会变量与消费之间的关系。试图提高可用性的干预研究导致了消费的增加，并且可用性预测了 18 个月内消费的变化。讨论。可用性似乎是消费的关键近端决定因素，尤其是食品和饮料，从而提供了变革的目标。然而，关联这些变量的机制尚不清楚，需要澄清因果关系的方向。我们认为，可能的因果机制可能包括：（1）可用性只是促进了消费的增加； (2) 现有食物的视觉线索可能会刺激消费； (3) 接触现有食物可能会增加偏好，从而导致消费增加。每一种可能性都需要仔细检查，政策层面的干预措施也是如此。结论：食品和饮料的可用性与消费增加相关。需要进行研究来阐明可用性和摄入量之间的机制，并测试政策层面的干预措施，以推动提高可用性作为公共卫生程序。
Objectives: To examine the association between fruit and vegetable (F&V) availability and consumption, the possible influences on this association, research gaps, and implications for developing strategies to increase F&V consumption.Design: Systematic review of studies that have examined associations between F&V availability and consumption.Results: Qualitative studies conducted among children and adults indicated that greater availability was associated with greater consumption. This finding was supported by cross-sectional studies among children. Availability was associated with dietary psychosocial variables such as preferences, and it appears that availability may moderate the relationship between these psychosocial variables and consumption. Intervention studies attempting to increase availability have resulted in increased consumption, and availability has predicted change in consumption over an 18-month period.Discussion. Availability appears to be a key proximal determinant of consumption, especially of F&V, and thereby provides a target for change. However, the mechanisms that relate these variables are unclear and there is a need to clarify the direction Of causality. We Suggest that the possible causal mechanisms may include: (1) availability Simply facilitates increased consumption; (2) the Visual cues of available food may stimulate consumption; and (3) available food exposure may increase preference, which leads to increased consumption. Each of these possibilities requires close examination, as do policy-level interventions.Conclusion: F&V availability is associated with increased consumption. Research that elucidates the mechanisms between availability and intake, and tests policy-level interventions, is needed to advance increased availability as a public health procedure.