The Healthy Eating Choices for Life Program

NCT ID: NCT01096719

Last Updated: 2018-04-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

45 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-01-31

Study Completion Date

2011-08-31

Brief Summary

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The purpose of this investigation is to conduct a 12-week pilot study to examine the effect of three different dietary prescriptions that differ on targeting reducing energy density (kcal/gram) and energy (kcal) on overall dietary intake, hunger, feelings of deprivation, satisfaction with the diet, mood, and weight loss in 45 overweight/obese adults receiving a 12-week behavioral weight loss intervention.

Detailed Description

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Given the current prevalence of overweight and obesity among adults in the United States and the projected increase of these conditions in the future, development of effective weight loss and weight loss maintenance strategies is imperative. For weight loss to occur, energy intake needs to be reduced to incur an energy deficit, and for successful weight loss maintenance, energy intake needs to remain lower than energy intake at pre-weight loss levels due to an overall reduction in body size which reduces basal metabolic rate. One dietary strategy that may facilitate weight loss maintenance is consuming a diet low in dietary energy density (ED). This pilot study will test the effects of a dietary prescription focused on ED.

All participants in the investigation will receive a standard 12-week behavioral obesity intervention. The intervention will include an activity goal that participants will gradually work to achieve over the course of the 12-week intervention along with standard behavioral weight loss strategies. One condition will receive a dietary prescription for weight loss that focuses solely on lowering the ED of the diet, another condition will receive the traditional dietary prescription used in behavioral weight loss interventions that reduces energy intake, and the third condition will receive both prescriptions. Pre and post intervention measurements will be taken to determine if there are differences between groups.

Conditions

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Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Energy Density

Group Type EXPERIMENTAL

Standard Behavioral Weight Loss Intervention

Intervention Type BEHAVIORAL

12 week standard behavioral weight loss intervention including a physical activity goal and behavioral weight control strategies

Dietary Goal: Reduction in Energy Density of Dietary Intake

Intervention Type BEHAVIORAL

Consume low ED foods (ED \< 1.0) for at least 10 items consumed per day and limit high ED foods (ED \> 3.0) to two items consumed per day.

Lifestyle Treatment

Group Type ACTIVE_COMPARATOR

Standard Behavioral Weight Loss Intervention

Intervention Type BEHAVIORAL

12 week standard behavioral weight loss intervention including a physical activity goal and behavioral weight control strategies

Dietary Goal: Reduction of Energy Intake

Intervention Type BEHAVIORAL

Limit energy intake to 1200 to 1500 kcals/day and \< 30% kcals from fat.

Energy Density + Lifestyle Treatment

Group Type EXPERIMENTAL

Standard Behavioral Weight Loss Intervention

Intervention Type BEHAVIORAL

12 week standard behavioral weight loss intervention including a physical activity goal and behavioral weight control strategies

Dietary Goal: Reduction in Energy Density of Dietary Intake

Intervention Type BEHAVIORAL

Consume low ED foods (ED \< 1.0) for at least 10 items consumed per day and limit high ED foods (ED \> 3.0) to two items consumed per day.

Dietary Goal: Reduction of Energy Intake

Intervention Type BEHAVIORAL

Limit energy intake to 1200 to 1500 kcals/day and \< 30% kcals from fat.

Interventions

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Standard Behavioral Weight Loss Intervention

12 week standard behavioral weight loss intervention including a physical activity goal and behavioral weight control strategies

Intervention Type BEHAVIORAL

Dietary Goal: Reduction in Energy Density of Dietary Intake

Consume low ED foods (ED \< 1.0) for at least 10 items consumed per day and limit high ED foods (ED \> 3.0) to two items consumed per day.

Intervention Type BEHAVIORAL

Dietary Goal: Reduction of Energy Intake

Limit energy intake to 1200 to 1500 kcals/day and \< 30% kcals from fat.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Age between 21 and 65 years
* Body mass index (BMI) between 25 and 45 kg/m2

Exclusion Criteria

* Report a health condition on the Physical Activity Readiness Questionnaire (PAR-Q)
* Report being unable to walk for 2 blocks (1/4 mile) without stopping
* Report major psychiatric diseases/organic brain syndromes via a phone screen
* 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
* Intend to move to another city within the time frame of the investigation
* Are pregnant, lactating, less than 6 months post-partum, or plan to become pregnant during the time frame of the investigation
* Have had gastric surgery for weight loss
Minimum Eligible Age

21 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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The University of Tennessee, Knoxville

OTHER

Sponsor Role lead

Responsible Party

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Hollie Raynor

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Hollie A Raynor, PhD, RD, LDN

Role: PRINCIPAL_INVESTIGATOR

University of Tennessee

Locations

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Healthy Eating and Activity Laboratory

Knoxville, Tennessee, United States

Site Status

Countries

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United States

References

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Raynor HA, Steeves EA, Hecht J, Fava JL, Wing RR. Limiting variety in non-nutrient-dense, energy-dense foods during a lifestyle intervention: a randomized controlled trial. Am J Clin Nutr. 2012 Jun;95(6):1305-14. doi: 10.3945/ajcn.111.031153. Epub 2012 May 2.

Reference Type DERIVED
PMID: 22552025 (View on PubMed)

Related Links

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http://heal.utk.edu/

Healthy Eating and Activity Laboratory Homepage

Other Identifiers

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IRB 8107 B

Identifier Type: -

Identifier Source: org_study_id

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