Intake Promoting Effects of Large Portions in Children
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 100
- 试验地点
- 4
- 主要终点
- Intake of portion manipulated foods
研究概览
简要总结
The purpose of this study is to test the effects of large food portions on children's eating. Experiment 1 will test the effect of portion size on children's consumption of sweetened beverages; we hypothesize that serving large beverage portions will increase the amount of energy children consume from this food. Experiment 2 will test the effects of portion size on children's intake of fruits and vegetables (FV) affect intake whether such effects are moderated by children's FV preferences and; we hypothesize that serving large fruit and vegetable portions will produce increases in children's intake of these foods, particularly for children who like fruit and vegetables. Experiment 3 will evaluate how food energy density affects children's response to large portions; we hypothesize that large portions will have the greatest influence on children's energy consumption when foods are energy dense. Experiment 4 will begin to address perceptual mechanisms by which large portions affect children's eating.
详细描述
The emerging epidemic of overweight among underscores the need to identify contributing environmental factors. Marketplace trends for excessive and growing portion sizes in and outside the home have reinforced concerns that large portions may directly contribute by promoting excessive intake. To date, however, systematic investigation of portion size effects on children's eating has been extremely limited. Two laboratory studies have reported that serving large portions of macaroni and cheese to young children promoted energy consumption at meals. Whether portion size effects would be seen with other foods of varying energy content and preference is unknown. Of particular public health interest is whether serving large portions may affect children's intake of sweetened beverages, fruits and vegetables, and energy dense foods. This study will address these questions using an experimental approach to test the effects of portion size on children's eating.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Basic Science
- 盲法
- Single (Participant)
入排标准
- 年龄范围
- 5 Years 至 6 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •5 to 6 years
排除标准
- •severe food allergies
- •chronic illnesses or medication use affecting food intake
- •dislike of foods on the menu
研究组 & 干预措施
Portion Size
Each experiment manipulated food portion size of beverages, entrees, and side dishes
干预措施: Food portion size (Behavioral)
结局指标
主要结局
Intake of portion manipulated foods
时间窗: In each experimental condition; 4 times in each 2 x 2 factorial experiment
Total energy consumed
时间窗: In each experimental condition; 4 times in each 2 x 2 factorial experiment
次要结局
未报告次要终点