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The Dietary Intervention in e-Shopping Trial

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00352508
First Posted: July 14, 2006
Last Update Posted: July 14, 2006
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by:
The George Institute
  Purpose
The supermarket industry now services many customers through online food shopping over the Internet. The Internet shopping process offers a novel opportunity for the modification of dietary patterns. The aim of this study was to evaluate the effects on consumers’ purchases of saturated fat of a fully automated computerised system that provided real-time, personally tailored advice recommending foods lower in saturated fat.

Condition Intervention
Behaviour Behavioral: Dietary advice

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Double
Primary Purpose: Educational/Counseling/Training
Official Title: The Dietary Intervention in e-Shopping Trial

Further study details as provided by The George Institute:

Primary Outcome Measures:
  • The percent of food purchased that was saturated fat.

Estimated Enrollment: 500
Study Start Date: September 2004
Estimated Study Completion Date: December 2004
Detailed Description:

Objective The supermarket industry now services many customers through online food shopping over the Internet. The Internet shopping process offers a novel opportunity for the modification of dietary patterns. The aim of this study was to evaluate the effects on consumers’ purchases of saturated fat of a fully automated computerised system that provided real-time, personally tailored advice recommending foods lower in saturated fat.

Design Blinded, randomized controlled trial.

Setting & Participants Consumers using a commercial on-line Internet shopping site between February and June 2004.

Intervention Individuals assigned to intervention received fully automated individually tailored advice that recommended specific switches from selected products higher in saturated fat to alternate similar products lower in saturated fat. Participants assigned to control received general non-specific advice about how to eat a diet lower in saturated fat.

Outcome measure The percent of food purchased that was saturated fat. Results There were 497 randomised participants, mean age 40 each shopping for an average of about 3 people. The amount of saturated fat in the foods purchased by the intervention group was 0.66% lower (95% confidence interval 0.48-0.84, p<0.0001) than in the control group. The effects of the intervention were sustained over time and there was no difference in the average cost of the food bought by each group.

Conclusions Fully automated, personally tailored dietary advice offered to customers doing Internet shopping can bring about changes in food purchasing habits that are likely to have significant public health implications. Because implementation is simple to initiate and maintain this strategy would likely be highly cost-effective.

  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

- Consumers using a commercial on-line Internet shopping site between February and June 2004.

Exclusion Criteria:

Children, non-internet shoppers

  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00352508


Locations
Australia, New South Wales
The George Institute
Sydney, New South Wales, Australia, 2050
Sponsors and Collaborators
The George Institute
Investigators
Principal Investigator: Bruce Neal, PhD The George Institute
  More Information

ClinicalTrials.gov Identifier: NCT00352508     History of Changes
Other Study ID Numbers: Diet2006
First Submitted: March 19, 2006
First Posted: July 14, 2006
Last Update Posted: July 14, 2006
Last Verified: March 2006

Keywords provided by The George Institute:
Internet, dietary advice, saturated fat