Breakfast Size and Weight Loss in Overweight/Obese Adults

NCT ID: NCT01332877

Last Updated: 2011-04-11

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

UNKNOWN

Clinical Phase

PHASE3

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-04-30

Brief Summary

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EFFECT OF HIGH CARBOHYDRATE AND HIGH PROTEIN BREAKFAST ON WEIGHT LOSS, GHRELIN, HUNGER AND CRAVING SCORES IN OBESE MEN AND WOMEN. D Jakubowicz, M Boaz, J Wainstein, O Froy

Background: Obesity underlying endocrine, metabolic and eating behaviour features promotes weight gain, increase of hunger, and carbohydrate (Carb) craving. Restrictive diets either in calories or Carb produce withdrawal effect, that further exacerbate Carb craving resulting in rapid return of obesity. Meal timing and composition has shown to play a pivotal role in appetite regulation through several hormonal systems such as ghrelin. The investigators hypothesized that to be successful; a weight loss strategy must change the hormonal environment to increase satiety while reducing hunger and craving.

Objectives: To assess weight loss, satiety, hunger, cravings and ghrelin response to two isocaloric diets. Additionally, these outcomes were measured in response to meal challenge.

Methods: In this randomized, treatment controlled clinical trial, 146 obese, sedentary adults with impaired glucose tolerance will be assigned to Low carb diet (LCHbd) or an isocaloric diet with a high carb, high protein breakfast (HCPbd),1400 kcal for women and 1600 kcal for men. LCHbd breakfast will provide 300 kcal with carb: protein: fat of 13:40:48. HCPbd breakfast will provide 600 kcal with 50:20:30. From baseline until week 16 participants will take part in a supervised weight loss diet, followed until week 32 by a maintenance period. Anthropometric measures, OGTT for glucose and insulin, VAS-measured hunger and satiety and Food Craving Inventory Analysis will be performed at baseline, week 16 and week 32.

Detailed Description

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Conditions

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Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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enriched breakfast

high carbohydrate, high protein breakfast providing 600 kcal, 50% carbohydrate, 20% protein, 30% fat

Group Type EXPERIMENTAL

Enriched breakfast

Intervention Type BEHAVIORAL

high carbohydrate, high protein breakfast supplying 600 kcal as 50k% carbohydrate, 20% protein, 30% fat

Control breakfast

Intervention Type BEHAVIORAL

Control breakfast providing 300 kcal, 13% carbohydrate, 40% protein, 48% fat

Interventions

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Enriched breakfast

high carbohydrate, high protein breakfast supplying 600 kcal as 50k% carbohydrate, 20% protein, 30% fat

Intervention Type BEHAVIORAL

Control breakfast

Control breakfast providing 300 kcal, 13% carbohydrate, 40% protein, 48% fat

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* adult
* male and female
* obese
* sedentary
* glucose intolerant/insulin resistant

Exclusion Criteria

* pregnant/lactating
* malignancy
* taking weight loss medications
* know eating disorder
Minimum Eligible Age

25 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Wolfson Medical Center

OTHER_GOV

Sponsor Role lead

Responsible Party

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E. Wolfson Medical Center

Locations

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Wolfson Medical Center

Holon, , Israel

Site Status RECRUITING

Countries

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Israel

Central Contacts

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Daniela Jakubowicz, MD

Role: CONTACT

972-50-810-5552

Julio Wainstein, MD

Role: CONTACT

972-3-502-8716

Facility Contacts

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Daniela Jakubowicz, MD

Role: primary

972-50-810-5552

Other Identifiers

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0029-11-WOMC

Identifier Type: -

Identifier Source: org_study_id

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