Making healthy food choices using nutrition facts panels. The roles of knowledge, motivation, dietary modifications goals, and age.
Making healthy food choices using nutrition facts panels. The roles of knowledge, motivation, dietary modifications goals, and age.
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DOI：
10.1016/j.appet.2012.04.009
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发表时间：
2012-08
期刊：
影响因子：
5.4
通讯作者：
Cassady DL
中科院分区：
文献类型：
--
作者：
Miller LM;Cassady DL
营养成分表 (NFP) 包含丰富的营养信息，可在大多数食品包装上找到。这些信息对于老年人来说可能更重要，因为他们患饮食相关疾病的风险增加，以及那些有可能影响食物选择的饮食调整目标的人。尽管过去的研究表明，知识和动机会影响对 NFP 的态度和自我报告的使用，但我们对年轻人和老年人在评估食品的健康品质时如何（即使用的策略）以及如何处理 NFP 信息（即准确性水平）知之甚少。我们操纵了 NFP 的内容，并使用眼动追踪方法，检查了与确定并排呈现的两个 NFP 中哪一个更健康相关的策略。我们研究了策略使用和准确性以及年龄、饮食改变状态、知识和动机之间的关联。结果显示，在各个年龄段中，具有饮食改变目标的人随着知识和动机的增加，在 NFP 之间进行相对更多的比较；但该策略的有效性（与准确性的关系）取决于年龄和动机。结果还表明，知识和动机可以防止晚年生活中准确性的下降，并且在不同年龄和饮食改变状态下，知识可以调节动机和决策准确性之间的关系。
Nutrition facts panels (NFPs) contain a rich assortment of nutrition information and are available on most food packages. The importance of this information is potentially even greater among older adults due to their increased risk for diet-related diseases, as well as those with goals for dietary modifications that may impact food choice. Despite past work suggesting that knowledge and motivation impact attitudes surrounding and self-reported use of NFPs, we know little about how (i.e., strategies used) and how well (i.e., level of accuracy) younger and older individuals process NFP information when evaluating healthful qualities of foods. We manipulated the content of NFPs and, using eye tracking methodology, examined strategies associated with deciding which of two NFPs, presented side-by-side, was healthier. We examined associations among strategy use and accuracy as well as age, dietary modification status, knowledge, and motivation. Results showed that, across age groups, those with dietary modification goals made relatively more comparisons between NFPs with increasing knowledge and motivation; but that strategy effectiveness (relationship to accuracy) depended on age and motivation. Results also showed that knowledge and motivation may protect against declines in accuracy in later life and that, across age and dietary modification status, knowledge mediates the relationship between motivation and decision accuracy.
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影响因子：
5.4
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