The Dietary Intervention in e-Shopping Trial

This study has been completed.
Sponsor:
Information provided by:
The George Institute
ClinicalTrials.gov Identifier:
NCT00352508
First received: March 19, 2006
Last updated: July 13, 2006
Last verified: March 2006

March 19, 2006
July 13, 2006
September 2004
 
The percent of food purchased that was saturated fat.
Same as current
Complete list of historical versions of study NCT00352508 on ClinicalTrials.gov Archive Site
 
 
 
 
 
The Dietary Intervention in e-Shopping Trial
The Dietary Intervention in e-Shopping Trial

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.

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.

Interventional
 
Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Double-Blind
Primary Purpose: Educational/Counseling/Training
Behaviour
Behavioral: Dietary advice
 
 

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
500
December 2004
 

Inclusion Criteria:

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

Exclusion Criteria:

Children, non-internet shoppers

-

Both
18 Years and older
Yes
Contact information is only displayed when the study is recruiting subjects
Australia
 
NCT00352508
Diet2006
 
 
The George Institute
 
Principal Investigator: Bruce Neal, PhD The George Institute
The George Institute
March 2006

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP