Piernas C, Ng S W, Popkin B
Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Pediatr Obes. 2013 Aug;8(4):294-306. doi: 10.1111/j.2047-6310.2013.00153.x. Epub 2013 Mar 25.
Current food databases might not capture rapidly occurring changes in the food supply, such as the increased use of caloric (CS) and low-calorie sweeteners (LCS) in products.
We explored trends in purchases and intake of foods and beverages containing LCS, CS or both sweeteners over the last decade in the United States, as well as household and socioeconomic status (SES) predictors of these trends.
We analyzed household purchases from Homescan 2000-2010 (n = 140 352 households; 408 458 individuals) and dietary intake from National Health And Nutrition Examination Survey (NHANES) 2003-2010 (n = 34 391 individuals). We estimated per capita purchases and intake (g or mL d(-1)) and percent of consumers of foods and beverages containing LCS, CS or both LCS + CS. We estimated change in purchases associated with SES and household composition using random-effects longitudinal models.
From 2000 to 2010, percent of households purchasing CS products decreased, whereas that for LCS and LCS + CS products increased among all types of households and particularly among those with children. African-American, Hispanic and households with children had a higher % CS beverage purchases (+9, +4 and +3%, respectively, P < 0.001) and lower % LCS beverage purchases (-12, -5 and -2%, respectively, P < 0.001).
During a period of declining purchases and consumption of CS products, we have documented an increasing trend in products that contain LCS and a previously unexplored trend in products with both LCS and CS, especially important among households with children.
当前的食物数据库可能无法反映食物供应中迅速发生的变化,例如产品中热量甜味剂(CS)和低热量甜味剂(LCS)使用量的增加。
我们探究了过去十年间美国含有LCS、CS或两种甜味剂的食品和饮料的购买及摄入量趋势,以及这些趋势的家庭和社会经济地位(SES)预测因素。
我们分析了2000 - 2010年家庭扫描数据中的家庭购买情况(n = 140352户家庭;408458人)以及2003 - 2010年美国国家健康与营养检查调查(NHANES)中的饮食摄入量(n = 34391人)。我们估算了人均购买量和摄入量(克或毫升/天)以及含有LCS、CS或LCS + CS的食品和饮料消费者的百分比。我们使用随机效应纵向模型估算了与SES和家庭构成相关的购买量变化。
从2000年到2010年,购买CS产品的家庭百分比下降,而在所有类型的家庭中,尤其是有孩子的家庭中,购买LCS和LCS + CS产品的家庭百分比上升。非裔美国人、西班牙裔家庭以及有孩子的家庭购买CS饮料的百分比更高(分别为+9%、+4%和+3%,P < 0.001),而购买LCS饮料的百分比更低(分别为-12%、-5%和-2%,P < 0.001)。
在CS产品购买量和消费量下降的时期,我们记录了含有LCS产品的增加趋势以及含有LCS和CS产品的此前未被探索的趋势,这在有孩子的家庭中尤为重要。