Rudd Center for Food Policy and Obesity, Yale University, 309 Edwards St, Box 208369, New Haven, CT 06520-8369, USA.
Pediatrics. 2011 Jan;127(1):71-6. doi: 10.1542/peds.2010-0864. Epub 2010 Dec 13.
To test (1) whether children will consume low-sugar ready-to-eat (RTE) cereals and (2) the effects of serving high- versus low-sugar cereals on the consumption of cereal, refined sugar, fresh fruit, and milk.
Using an experimental design, we randomly assigned children (n = 91) who were attending summer day camp to receive a breakfast that included either the choice of 1 of 3 high-sugar cereals (high-sugar condition) or low-sugar cereals (low-sugar condition), as well as low-fat milk, orange juice, bananas, strawberries, and sugar packets. Participants served themselves and completed a background questionnaire after eating. Researchers measured the amount and calories consumed of each food.
In both conditions, children reported "liking" or "loving" the cereal they chose. Children in the low-sugar cereal condition consumed, on average, slightly more than 1 serving of cereal (35 g), whereas children in the high-sugar condition consumed significantly more (61 g) and almost twice the amount of refined sugar in total (24.4 vs 12.5 g). Milk and total calories consumed did not differ significantly between conditions, but children in the low-sugar condition were more likely to put fruit on their cereal (54% vs 8%) and consumed a greater portion of total calories from fresh fruit (20% vs 13%).
Compared with serving low-sugar cereals, high-sugar cereals increase children's total sugar consumption and reduce the overall nutritional quality of their breakfast. Children will consume low-sugar cereals when offered, and they provide a superior breakfast option.
(1)检验儿童是否会食用低糖即食(RTE)谷类食品,以及(2)提供高糖和低糖谷类食品对谷类食品、精制糖、新鲜水果和牛奶摄入量的影响。
采用实验设计,我们随机分配(n=91)参加夏令营的儿童,他们可以选择 3 种高糖谷类食品(高糖组)或低糖谷类食品(低糖组)作为早餐,并提供低脂牛奶、橙汁、香蕉、草莓和糖包。参与者自行进食,并在进食后完成背景问卷。研究人员测量了每种食物的摄入量和卡路里。
在两种情况下,孩子们都表示喜欢他们选择的谷类食品。在低糖谷类食品条件下,儿童平均食用略多于 1 份(35 克)谷类食品,而在高糖谷类食品条件下,儿童食用的量明显更多(61 克),总精制糖摄入量几乎是后者的两倍(24.4 克比 12.5 克)。两种情况下牛奶和总卡路里的摄入量没有显著差异,但在低糖条件下,儿童更有可能在谷类食品上加水果(54%比 8%),并且从新鲜水果中摄入的总卡路里比例更高(20%比 13%)。
与提供低糖谷类食品相比,高糖谷类食品会增加儿童的总糖摄入量,并降低其早餐的整体营养质量。当提供低糖谷类食品时,儿童会食用,并且它们提供了更好的早餐选择。