Food price policies improve diet quality while increasing socioeconomic inequalities in nutrition.
Food price policies improve diet quality while increasing socioeconomic inequalities in nutrition.
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DOI：
10.1186/1479-5868-11-66
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发表时间：
2014-05-20
期刊：
影响因子：
--
通讯作者：
Ruffieux B
中科院分区：
文献类型：
--
作者：
Darmon N;Lacroix A;Muller L;Ruffieux B
价格是食物选择的重要决定因素。因此，提出了食品价格政策（补贴和/或税收）来提高饮食的营养质量。本研究的目的是探讨食品价格政策对中低收入家庭选择的食品篮子的支出和营养质量的影响。实验经济学被用来检验两种价格操纵行为：i）名为“水果和蔬菜条件”的水果和蔬菜价格补贴； ii) 健康产品补贴加上名为“营养状况条件”的不健康产品税。使用了名为 SAIN,LIM 的营养分析系统。该系统根据每种食品的整体营养质量对其进行分类，然后允许对食品征税或补贴。来自低收入 (n = 95) 和中等收入 (n = 33) 的妇女首先按当前价格选择每日食品篮，然后按操纵价格选择。通过比较补贴引起的储蓄程度和税收对两个收入群体产生的成本来评估实验条件的再分配效应。能量密度（kcal/100 g）、游离糖（%能量）和平均充足率（MAR）被用作营养质量指标。在基线（价格操纵之前），低收入女性选择的篮子比中等收入女性更便宜、更不健康。价格操纵后，两个收入组的支出均显着下降，而营养质量却有所改善（能量密度下降，MAR 增加）。此外，再分配效应对低收入女性不太有利，她们的营养质量相对基线的改善也明显较低。低收入妇女从实施的粮食补贴和税收中获得的经济和营养益处少于中等收入妇女。这一结果表明，粮食价格政策可能会改善饮食质量，同时增加营养方面的社会经济不平等。
Prices are an important determinant of food choices. Consequently, food price policies (subsidies and/or taxes) are proposed to improve the nutritional quality of diets. The aim of the present study was to explore the impact of food price policies on the expenditures and nutritional quality of the food baskets chosen by low- and medium-income households. Experimental economics was used to examine two price manipulations: i) a fruit and vegetable price subsidy named “fruit and vegetables condition”; ii) a healthy-product subsidy coupled with an unhealthy-product tax named “nutrient profile condition”. The nutrient profiling system called SAIN,LIM was used. This system classifies each individual food according to its overall nutritional quality which then allows for a food item to be taxed or subsidized. Women from low- (n = 95) and medium-incomes (n = 33) selected a daily food basket, first, at current prices and then at manipulated prices. The redistributive effects of experimental conditions were assessed by comparing the extent of savings induced by subsidies and of costs generated by the tax on the two income groups. Energy density (kcal/100 g), free sugars (% energy) and the mean adequacy ratio (MAR) were used as nutritional quality indicators. At baseline (before price manipulations), low-income women selected less expensive and less healthy baskets than medium-income ones. After price manipulations expenditures for both income group decreased significantly, whereas, the nutritional quality improved (energy density decreased, the MAR increased). Additionally, the redistributive effects were less favourable for low-income women and their nutritional quality improvements from baseline were significantly lower. Low-income women derived fewer financial and nutritional benefits from implemented food subsidies and taxes than medium-income women. This outcome suggests that food price policies may improve diet quality while increasing socio-economic inequalities in nutrition.
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影响因子：
3.2
作者：
Caraher, M;Cowburn, G
通讯作者：
Cowburn, G
影响因子：
5.4
作者：
Hamelin, AM;Beaudry, M;Habicht, JP
通讯作者：
Habicht, JP
影响因子：
12.7
作者：
Frohlich, Katherine L.;Potvin, Louise
通讯作者：
Potvin, Louise
影响因子：
--
作者：
Darmon, N;Darmon, M;Drewnowski, A
通讯作者：
Drewnowski, A
影响因子：
4.2
作者：
Drewnowski, A;Darmon, N
通讯作者：
Darmon, N