Andrieu E, Darmon N, Drewnowski A
Nutritional Epidemiology Research Unit INSERM 557, Paris, France.
Eur J Clin Nutr. 2006 Mar;60(3):434-6. doi: 10.1038/sj.ejcn.1602331.
Energy-dense diets offer a low-cost dietary option to the consumer. However, they are more likely to be nutrient-poor. In this study, based on the French national food consumption survey, the diet costs were estimated using retail food prices in France. Adult participants were stratified by quartiles of energy cost (in euro/10 MJ). Dietary energy density, energy and nutrient intakes were then compared across groups. Participants in the lowest quartile of energy cost had the highest energy intakes, the most energy-dense diets and the lowest daily intakes of key vitamins and micronutrients. Participants in the highest quartile of energy cost had lower energy intakes, and diets that were higher in nutrients and lower in energy density. However, their daily diet costs were 165% higher. In this observational study, the more nutrient-dense diets were associated with higher diet costs.
能量密集型饮食为消费者提供了一种低成本的饮食选择。然而，它们更有可能缺乏营养。在这项基于法国全国食品消费调查的研究中，饮食成本是根据法国的零售食品价格估算的。成年参与者按能量成本四分位数（欧元/10兆焦耳）分层。然后比较各群体的膳食能量密度、能量和营养摄入量。能量成本最低四分位数的参与者能量摄入量最高，饮食能量密度最大，关键维生素和微量营养素的每日摄入量最低。能量成本最高四分位数的参与者能量摄入量较低，饮食中营养成分较高，能量密度较低。然而，他们的每日饮食成本高出165%。在这项观察性研究中，营养密度越高的饮食与越高的饮食成本相关。
