Perceived 'healthiness' of foods can influence consumers' estimations of energy density and appropriate portion size
Perceived 'healthiness' of foods can influence consumers' estimations of energy density and appropriate portion size
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DOI：
10.1038/ijo.2013.69
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发表时间：
2014-01-01
影响因子：
4.9
通讯作者：
Livingstone, M. B. E.
中科院分区：
文献类型：
--
作者：
Faulkner, G. P.;Pourshahidi, L. K.;Livingstone, M. B. E.
目的：比较健康食品与标准食品的份量 (PS) 估计值、感知能量密度 (ED) 和预期消费负罪感 (ACG)。方法：选择三对等能量密度（kJ/100 克）食品（健康食品与标准谷物食品、饮料和凉拌卷心菜）。 For each food, subjects served an appropriate PS for themselves and estimated its ED.受试者还按照从 1（完全没有罪过）到 5（非常有罪）的等级对他们吃该食物的 ACG 进行评分。 结果：受试者 (n = 186) 估计健康凉拌卷心菜的比例比标准版本的要大，并且认为所有健康食品的 ED 含量都低于标准替代品，尽管它们是等能量密集的。 Higher ACG was associated with the standard foods.估计的份量通常大于推荐值，并且食物的 ED 值被低估。结论：“低脂”食品选择的较大份量与较低的 ED 和 ACG 感知值相关，表明此类营养声明可能会促进不适当的 PS 选择和消费行为。 Consumer education on appropriate portions is warranted to correct such misconceptions.
OBJECTIVE: To compare portion size (PS) estimates, perceived energy density (ED) and anticipated consumption guilt (ACG) for healthier vs standard foods.METHODS: Three pairs of isoenergy dense (kJ per 100 g) foods-healthier vs standard cereals, drinks and coleslaws-were selected. For each food, subjects served an appropriate PS for themselves and estimated its ED. Subjects also rated their ACG about eating the food on a scale of 1 (not at all guilty) to 5 (very guilty).RESULTS: Subjects (n = 186) estimated larger portions of the healthier coleslaw than that of the standard version, and perceived all healthier foods to be lower in ED than their standard alternatives, despite being isoenergy dense. Higher ACG was associated with the standard foods. Portion estimates were generally larger than recommendations and the ED of the foods was underestimated.CONCLUSIONS: The larger portions selected for the 'reduced fat' food in association with lower perceived ED and ACG suggests that such nutrition claims could be promoting inappropriate PS selection and consumption behaviour. Consumer education on appropriate portions is warranted to correct such misconceptions.