Food choices and diet costs: an economic analysis
Food choices and diet costs: an economic analysis
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DOI：
10.1093/jn/135.4.900
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发表时间：
2005-04-01
影响因子：
4.2
通讯作者：
Darmon, N
中科院分区：
文献类型：
--
作者：
Drewnowski, A;Darmon, N
肥胖在美国是一个社会经济问题。它与有限的社会和经济资源有关，并可能与获得健康食品方面的差异有关。添加糖和添加脂肪比推荐的基于瘦肉、全谷物、新鲜蔬菜和水果的“健康”饮食要便宜得多。食物的能量密度（千焦/克）和能量成本（美元/兆焦耳）之间存在反比关系，因此能量密度高的谷物、脂肪和糖果对消费者来说是成本最低的饮食选择。美味、方便、低成本的高能量食物，加上大份量和低饱腹力，可能是暴饮暴食和体重增加的主要原因。在获得更健康饮食方面的经济差异可能有助于解释为什么少数民族和有工作的穷人中肥胖和糖尿病的发病率最高。如果是这样，那么鼓励低收入家庭消费更昂贵的食品并不是一个有效的公共卫生战略。我们需要的是一种综合的政策方法，将行为营养学和食物选择的经济学考虑在内。
Obesity in the United States is a socioeconomic issue. It is related to limited social and economic resources and may be linked to disparities in access to healthy foods. Added sugars and added fats are far more affordable than are the recommended "healthful" diets based on lean meats, whole grains, and fresh vegetables and fruit. There is an inverse relationship between energy density of foods (kJ/g) and energy cost ($/MJ), such that energy-dense grains, fats, and sweets represent the lowest-cost dietary options to the consumer. Good taste, high convenience, and the low cost of energy-dense foods, in conjunction with large portions and low satiating power, may be the principal reasons for overeating and weight gain. Financial disparities in access to healthier diets may help explain why the highest rates of obesity and diabetes are found among minorities and the working poor. If so, then encouraging low-income households to consume more costly foods is not an effective strategy for public health. What is needed is a comprehensive policy approach that takes behavioral nutrition and the economics of food choice into account.