Portion Size Strategies for Management of Body Weight
Completed · Not applicable
Conditions studied: Obesity
In brief
The primary aim of this research is to determine the efficacy of two portion-control strategies to achieve sustainable dietary and behavior changes and to promote weight loss and maintenance. A randomized controlled trial will test two approaches to managing portion sizes: one that gives individuals skills and tools to help them make appropriate portion choices, and another that focuses on consumption of pre-portioned foods in order to limit exposure to large portions in the personal food environment. A third group will receive a basic nutritional program to promote weight loss. The second aim of the research is to determine the effects of the programs on knowledge and consumption of appropriate portions, as assessed by innovative assessment methods and multiple-pass dietary recalls. The third aim is to conduct exploratory analyses of individual factors that may influence the response to the portion-control interventions, such as psychosocial indicators, blood biomarkers, and measures of adherence to the interventions. The expected outcome of the project is that it will lead to the development of specific, evidence-based strategies to help control portion sizes in order to manage weight.
Key facts
- Study ID
- NCT01474759
- Run by
- Penn State University
- People needed
- 186
- Starts
- 2012-07-01
- Expected to finish
- 2015-03-01
- Last updated by the study team
- 2015-05-15
Who can join
Age: 20 and older, up to 65. Sex: female. Healthy volunteers: not accepted.
You may qualify if…
- Body mass index of 28 to 45 kg/m squared
- Able to safely engage in physical activity (walking)
- Able to attend regular instructional sessions at University Park, Pennsylvania
You may not qualify if…
- have a medical condition diagnosed by a physician that precludes participation
- report symptoms indicative of depression or disordered eating
- report serious food allergies or intolerance
- current or planned participation in a weight-loss program
- pregnant or lactating or planning to become pregnant in the next 18 months
Where it is running
- Penn State University Laboratory for the Study of Human Ingestive Behavior — University Park, Pennsylvania, United States
Full record on ClinicalTrials.gov
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