Reducing snack food variety during obesity treatment

肥胖治疗期间减少零食种类

• 批准号: 7083801
• 负责人: Hollie A Raynor
• 金额: $ 29.65万
• 依托单位: MIRIAM HOSPITAL
• 依托单位国家: 美国
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-04-10 至 2010-03-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7083801
• 关键词: behavioral /social science research tag; behavioral medicine; body physical activity; caloric dietary content; clinical research; clinical trials; craving; diet therapy; dietary constituent; dietary lipid; dietary restriction; food; human subject; human therapy evaluation; longitudinal human study; nutrition education; nutrition related tag; obesity; overeating; patient oriented research; pleasure; quality of life; satiations; satisfaction; self help; weight control; weight loss

DESCRIPTION (provided by applicant): The rising prevalence of obesity in the United States is believed to be due to increased exposure to adverse environmental factors, such as food portion sizes and increased dietary variety. Although decreasing portion sizes is a strategy used in weight loss programs, research has not studied the effects of decreasing dietary variety. Cross-sectional studies show a positive association between variety and body weight and in our own studies we have shown that greater reductions in the number of different snack foods (i.e. cookies, chips) consumed predicted greater decreases in overall caloric and fat intake and greater weight loss. Limiting variety may reduce intake through long-term sensory-specific satiety and/or monotony. Reducing dietary variety is a novel dietary approach with the potential to improve long-term weight loss, which has not been studied as a clinical strategy in obesity research. The objective of this application is to conduct a randomized controlled trial of a behavioral weight loss intervention limiting the number of different snack foods consumed. Two hundred overweight and obese participants will be randomized to a standard behavioral intervention (Standard) or to a standard behavioral intervention that also limits the number of different snack foods consumed (Limited Variety). Both conditions will receive an 18-month standard behavioral intervention, using behavioral techniques (i.e., self-monitoring) to change eating behaviors. Participants in the Limited Variety condition will also limit variety in snack foods to only two chosen snack foods throughout the intervention. Measures of weight, snack food consumption and hedonics, and diet satisfaction will be taken at 0, 6, 12, and 18 months. This investigation will determine: 1) if the Limited Variety condition produces greater weight loss than the Standard condition at 18 months; 2) if the Limited Variety condition consumes fewer servings and calories from snack foods than the Standard condition; and 3) if limiting snack food variety produces long-term sensory-specific satiety and/or monotony. Relevance: Experimental studies show that limiting dietary variety profoundly reduces intake. To date, there is no dietary prescription that has been tested that capitalizes on the effect of variety on intake that can be maintained. This will be the first investigation to examine methods of manipulating dietary variety that can be adhered to over time and that influence intake, weight loss, and weight loss maintenance.

描述（由申请人提供）：美国肥胖症患病率的上升据信被认为是由于对不利环境因素（例如食物部分的大小和饮食种类增加）的影响增加所致。尽管减少的份量是减肥计划中使用的一种策略，但研究尚未研究减少饮食品种的影响。横截面研究表明，多样性与体重之间存在正相关，在我们自己的研究中，我们表明，不同零食食品数量的减少（即饼干，芯片）的减少量增加了，预计总体热量和脂肪摄入量和体重减轻会更大。限制多样性可以通过长期特定的饱腹感和/或单调来减少摄入量。减少饮食种类是一种新型的饮食方法，具有改善长期体重减轻的潜力，尚未将其作为肥胖研究中的临床策略进行研究。该应用的目的是对行为减肥干预措施进行随机对照试验，以限制所消耗的不同零食食品的数量。两百个超重和肥胖的参与者将被随机分配为标准行为干预（标准）或标准行为干预措施，该行为干预也限制了消费的不同零食食品的数量（有限的品种）。两种情况都将使用行为技术（即自我监控）来改变饮食行为，将获得18个月的标准行为干预。在整个干预措施中，种类繁多的参与者还将限制零食食品的多样性。体重，零食消耗和享乐者的度量以及饮食满意度将在0、6、12和18个月进行。这项研究将确定：1）如果有限的种类状况比18个月时的标准状况更大； 2）如果有限的种类含量少于零食食品的份量和卡路里，而不是标准状况； 3）如果限制零食品种会产生长期的特定于感觉的饱腹感和/或单调。相关性：实验研究表明，限制饮食多样性会大大减少摄入量。迄今为止，尚无对饮食处方的测试，这些处方利用了可以维持的品种对摄入量的影响。这将是首次研究操纵饮食品种的方法，这些方法可以随着时间的流逝而粘附，并影响摄入量，体重减轻和减肥。