Effects of portion size and energy density on young children's intake at a meal
Effects of portion size and energy density on young children's intake at a meal
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DOI：
10.1093/ajcn/86.1.174
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发表时间：
2007-07-01
影响因子：
7.1
通讯作者：
Rolls, Barbara J.
中科院分区：
文献类型：
--
作者：
Fisher, Jennifer;Liu, Yan;Rolls, Barbara J.
背景：大部分高能量食物是促进肥胖饮食环境的一个特征。主菜的分量大小已被证明会影响幼儿在用餐时的能量摄入。然而，能量密度（艾德）在儿童对食物份量的反应中的作用尚不清楚。目的：我们旨在测试食物份量和艾德对儿童食物和能量摄入的影响。设计：参与者为53名（28名女孩和25名男孩; 15名西班牙裔，20名黑人，16名白色，2名其他种族）5- 6岁儿童[平均（SD）体重指数百分位数：= 61 +/- 28]。采用2 × 2的受试者内设计来操纵主菜份量（250与500 g相比）和艾德（1.3与1.8 kcal/g相比）。提供了其他熟悉的食物的固定部分。结果：食物份量（P < 0.0001）和艾德（P <0.0001）对能量摄入量的影响是独立的，但具有加和性。从其他食物中摄入的能量在不同的条件下没有变化。与参考分量大小和艾德条件相比，儿童从主菜中消耗的能量多76%，当提供更大，更高能量密度的主菜时，儿童在用餐时消耗的能量多34%。影响并没有因性别，年龄，主菜偏好，或身体质量指数z score.Conclusions：这些研究结果提供了新的证据，部分大小和艾德的行为添加剂，以促进学龄前儿童在膳食中的能量摄入。
Background: Large portions of energy-dense foods are one feature of obesity-promoting dietary environments. Entree portion size has been shown to influence energy intake at meals by young children. The role of energy density (ED) in children's response to portion size, however, is unknown.Objective: We aimed to test the effects of portion size and ED on children's food and energy intakes at a meal.Design: Participants were 53 (28 girls and 25 boys; 15 Hispanic, 20 black, 16 white, 2 other race) 5- to 6-y-old children [mean ( SD) body mass index percentile: = 61 +/- 28]. A 2 X 2 within-subjects design was used to manipulate entree portion size (250 compared with 500 g) and ED (1.3 compared with 1.8 kcal/g). Fixed portions of other familiar foods were provided. Weighed intake, food preference, and weight and height data were obtained.Results: Effects of portion size (P < 0.0001) and ED (P < 0.0001) on entree energy intake were independent but additive. Energy intake from other foods at the meal did not vary across conditions. Compared with the reference portion size and ED condition, children consumed 76% more energy from the entree and 34% more energy at the meal when served the larger, more energy-dense entree. Effects did not vary by sex, age, entree preference, or body mass index z score.Conclusions: These findings provide new evidence that portion size and ED act additively to promote energy intake at meals among preschool-aged children.