Dietary Variety Versus Dietary Fat Effects in Energy Intake

NCT00285571 | Completed Phase 1

• 1 other identifier: DK62400 (completed 2007)
• Study Type: interventional
• Target: 64
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

Healthy

Outcome Measures

Primary Outcomes (1)

• Change in energy intake at two weeks.

Secondary Outcomes (1)

• Two week changes in body weight, fat, taste preferences, nutrient composition of self-selected dietary intake, eating patterns of self-selected dietary intake.

Interventions

Controlled Feeding Intervention BEHAVIORAL

Eligibility Criteria

• Age: 18 Years - 50 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

Sponsors & Collaborators

• National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK): lead

Study Sites (1)

Bastyr University

Kenmore, Washington, 98036, United States

Location

Study Officials

• Megan McCrory, PhD

  Bastyr University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: RANDOMIZED
• Masking: SINGLE
• Purpose: PREVENTION
• Intervention Model: CROSSOVER
• Sponsor Type: NIH

Study Record Dates

• First Submitted: January 31, 2006
• First Posted: February 2, 2006
• Study Start: September 1, 2005
• Study Completion: September 1, 2007
• Last Updated: March 18, 2010

Record last verified: 2010-03

Locations

US (1)