Dietary Variety Versus Dietary Fat Effects in Energy Intake
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Purpose
The relative importance of dietary patterns vs. macronutrient composition in affecting energy intake and body weight remains uncertain. In this study we propose to investigate the relative effects of dietary variety vs dietary fat on voluntary energy intake in adults. We will quantify and compare the effects of typical ranges of variety & fat intakes in the American diet on voluntary energy intake. The primary hypotheses to be tested are 1)an increasing availability of entree/side/snack/dessert variety offered will significantly increase voluntary energy intake in a dose-response fashion when other dietary factors known to influence energy intake are held constant. 2)The separate effects of dietary variety & dietary fat on energy intake will be similar.
We anticipate that the results of this investigation will lead to a greater understanding of the relative importance of eating patterns versus macronutrient composition in the etiology of obesity, and more specifically, dietary variety versus dietary fat in determining energy intake. More importantly, it will help lay a foundation for improved dietary recommendations concerning weight loss and prevention of excess weight gain in adulthood.
| Condition | Intervention | Phase |
|---|---|---|
|
Healthy |
Behavioral: Controlled Feeding Intervention |
Phase 1 Phase 2 |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Endpoint Classification: Efficacy Study Intervention Model: Crossover Assignment Masking: Single Blind Primary Purpose: Prevention |
| Official Title: | Dietary Variety vs Dietary Fat Effects on Energy Intake |
- Change in energy intake at two weeks.
- Two week changes in body weight, fat, taste preferences, nutrient composition of self-selected dietary intake, eating patterns of self-selected dietary intake.
| Estimated Enrollment: | 64 |
| Study Start Date: | September 2005 |
| Study Completion Date: | September 2007 |
The relative importance of dietary patterns vs. macronutrient composition in affecting energy intake and body weight remains uncertain. In this study we propose to investigate the relative effects of dietary variety vs dietary fat on voluntary energy intake in adults. We will quantify and compare the effects of typical ranges of variety & fat intakes in the American diet on voluntary energy intake. The primary hypotheses to be tested are 1)an increasing availability of entree/side/snack/dessert variety offered will significantly increase voluntary energy intake in a dose-response fashion when other dietary factors known to influence energy intake are held constant. 2)The separate effects of dietary variety & dietary fat on energy intake will be similar.
We anticipate that the results of this investigation will lead to a greater understanding of the relative importance of eating patterns versus macronutrient composition in the etiology of obesity, and more specifically, dietary variety versus dietary fat in determining energy intake. More importantly, it will help lay a foundation for improved dietary recommendations concerning weight loss and prevention of excess weight gain in adulthood
Eligibility| Ages Eligible for Study: | 18 Years to 50 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | Yes |
Inclusion Criteria: Healthy adults age 18-5 y with BMI 20-35 kg/m
Contacts and Locations More Information
No publications provided
| ClinicalTrials.gov Identifier: | NCT00285571 History of Changes |
| Other Study ID Numbers: | DK62400 (completed 2007) |
| Study First Received: | January 31, 2006 |
| Last Updated: | March 17, 2010 |
| Health Authority: | United States: Federal Government |
ClinicalTrials.gov processed this record on May 21, 2013