Acute Glycemic Effects of a Very Low Fat Diet in Type 2 Diabetes

June 22, 2007 updated by: National Center for Research Resources (NCRR)
There is some consensus that high fat diets can contribute to the development of obesity and type 2 diabetes in humans and animals. An increase in dietary fat has been shown to produce obesity and diabetes in mice; such diet-induced diabetes can be reversed by reducing the fat in the diet. In humans, there is some evidence that low-fat diets can produce acute improvements in blood sugar control in type 2 diabetes-even in the absence of weight loss. In most human studies, however, dietary fat reduction has been accompanied by a reduction in total calorie intake. It is thus not possible to separate the effects of these 2 metabolic changes. The purpose of this study is to gather preliminary information on the effect of a very-low-fat diet on blood metabolism in persons with type 2 diabetes. The design incorporates controlled feeding procedures, and 30 men and women with type 2 diabetes will be given all foods for 4 weeks--a 2-week diet standardization period (diet composition: 35% fat, 15% protein, 50% carbohydrate), followed by a 2-week experimental diet period. The experimental diet conditions are A) continuation of the moderately-high-fat standardization diet, or B) a very-low-fat diet composed of 10% fat, 15% protein, 75% carbohydrate. Outcomes will be measured after the standardization and the experimental periods. The primary outcome variable is fasting plasma glucose; secondary outcomes are fasting insulin, carbohydrate (meal) tolerance, insulin secretion and blood lipids. In addition, we will gather descriptive data on the potential acceptability and utility of a very-low-fat diet constructed using the fat substitute, olestra (sucrose polyester). There are no results yet.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • North Carolina
      • Durham, North Carolina, United States, 27710
        • Duke University Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

45 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Type 2 diabetes, not tightly controlled at present
  • Not using medication (insulin or oral) to control blood sugar
  • Overweight, but generally healthy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Masking: Single

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

National Center for Research Resources (NCRR)

Collaborators

Duke University
Procter and Gamble
Jenny Craig, Inc.

Investigators

  • Principal Investigator: Richard S. Surwit, Ph.D.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2000

Study Registration Dates

First Submitted

November 3, 2000

First Submitted That Met QC Criteria

November 3, 2000

First Posted (Estimate)

November 6, 2000

Study Record Updates

Last Update Posted (Estimate)

June 25, 2007

Last Update Submitted That Met QC Criteria

June 22, 2007

Last Verified

June 1, 2007

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • NCRR-M01RR00030-0152
  • M01RR000030 (U.S. NIH Grant/Contract)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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