Lowering Caloric Density of the Diet

The University of Tennessee, Knoxville2 个研究点分布在 1 个国家目标入组 60 人开始时间: 2015年12月1日最近更新: 2026年6月9日

适应症

干预措施

试验速览

阶段: 不适用
状态: 已完成
发起方
入组人数: 60
试验地点: 2
主要终点: Dietary: Macronutrients

研究概览研究设计入排标准研究组 & 干预措施结局指标研究者研究点记录与标识符相似试验

研究概览

简要总结

For weight loss to occur, energy intake needs to be reduced to incur an energy deficit. One dietary strategy that may facilitate reducing energy intake and enhancing weight loss is consuming a diet low in dietary energy density (ED). The ED of a given food, defined as the ratio of energy of the food to the weight of the food (kcal/g), is largely determined by water content, but is also affected by fat and fiber. Although the 2010 Dietary Guidelines encourage an eating pattern low in energy density (ED) to manage weight, it is currently not known what the best strategy is for reducing ED in the diet. Eating a greater number of foods low in ED or reducing the number of foods high in ED may reduce overall dietary ED. As ED is believed to reduce intake by allowing a greater weight of food relative to total energy consumed assisting with enhancing feelings of fullness, it is anticipated that either increasing consumption of low-ED foods in the diet alone or combining an increase in consumption of low-ED foods with a decrease in consumption of high-ED foods may be the best strategies for reducing overall dietary ED for weight loss.

研究设计

研究类型: Interventional
分配方式: Randomized
干预模型: Parallel
主要目的: Treatment
盲法: Single (Outcomes Assessor)

入排标准

年龄范围: 18 Years 至 65 Years（Adult, Older Adult）
性别: All
接受健康志愿者: 是

入选标准

•1) age between 18 and 65 years and 2) a body mass index (BMI)7 between 27 and 45 kg/m2.

排除标准

•report a heart condition, chest pain during periods of activity or rest, or loss of consciousness on the Physical Activity Readiness Questionnaire (PAR-Q)8 (medical conditions that could limit exercise for safety reasons will be required to obtain written physician consent before participating in the investigation)
•report being unable to walk for 2 blocks (1/4 mile) without stopping
•are currently participating in a weight loss program and/or taking weight loss medication or lost > 5% of body weight during the past 6 months
•report major psychiatric diseases or organic brain syndromes
•have had bariatric surgery or are planning to have bariatric surgery within the next 4 months
•intend to move outside of the metropolitan area within the time frame of the investigation
•are pregnant, lactating, < 6 months post-partum, or plan to become pregnant during the investigation.

研究组 & 干预措施

INCREASE

Active Comparator

This condition will be instructed to make food consumption decisions based solely upon the ED of a food. The goal of the ED condition will be to consume at least 10 foods ≤ 1.0 kcal/g (i.e., fruits and vegetables, broth based soups, non-fat yogurts, some legumes, egg substitutes, some white fish, etc.) per day.

干预措施: Common components of intervention (Behavioral)

COMBINATION

Active Comparator

This condition will be identical to the INCREASE condition, except it will also have a goal regarding the number of high-ED foods to consume and substituting low-ED foods for high-ED foods. Thus, this condition will have ED goals to consume at least 10 foods ≤ 1.0 kcal/g (i.e., fruits and vegetables, broth based soups, non-fat yogurts, some legumes, egg substitutes, some white fish, etc.) and no more than 2 foods ≥ 3.0 kcal/g (i.e., crackers, chips, cookies, hard cheeses, hot dogs, salad dressings, etc.) per day. Foods with an ED >1.0 kcal/g but < 3.0 kcal/g will be unlimited; however, lower ED foods will be strongly encouraged. Furthermore, additions to beverages (i.e., sugar, cream) will count toward the > 3.0 kcal/g goal if the additions meet that ED criteria.

干预措施: Common components of intervention (Behavioral)