Effects of Portion Size of Multiple Items at a Meal on Food Intake of Adults
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 51
- 试验地点
- 2
- 主要终点
- Differences in meal food intake
研究概览
简要总结
This study tests the effect of serving larger portions of all foods in a meal on the outcome of food and energy intake. Using a crossover design, participants are served the meal once a week for four weeks and the portion sizes are varied at each meal. Some of the foods served at the meal are low in calorie density (calories per gram) and some are higher in calorie density. The aim is to determine whether intake in response to larger portions differs depending on characteristics of the subjects or of the foods.
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
- None
入排标准
- 年龄范围
- 20 Years 至 45 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Body mass index of 18 to 40 kg/square meter
- •Regularly eat three meals per day
- •Willing to eat foods served at test meals
排除标准
- •Food allergies or restrictions
- •Dieting to gain or lose weight
- •Taking medications known to affect appetite
- •Athlete in training
- •Currently pregnant or breast-feeding
- •Questionnaire score indicative of depression
- •Questionnaire score indicative of disordered eating attitudes
结局指标
主要结局
Differences in meal food intake
时间窗: Weeks 1, 2, 3, and 4
Differences in weight of food consumed (grams) at the meals
Differences in meal energy intake
时间窗: Weeks 1, 2, 3, and 4
Differences in energy of food consumed (kilocalories) at the meals
Differences in meal energy density
时间窗: Weeks 1, 2, 3, and 4
Differences in energy density of food consumed (kilocalories per gram) at the meal
次要结局
- Differences in hunger and satiety(Weeks 1, 2, 3, and 4)
- Differences in ratings of food properties(Weeks 1, 2, 3, and 4)
研究者
Barbara J. Rolls
Professor of Nutrition and Director of the Laboratory for the Study of Human Ingestive Behavior
Penn State University