The Effect of Shelf Nutrition Labels on Purchases

December 26, 2017 updated by: Chen Zhen, University of Georgia

Identifying the Effect of Shelf Nutrition Labels on Consumer Purchases, Results of a Natural Experiment and Consumer Survey

NuVal® shelf nutrition labels rate the nutritional quality of foods on a scale of 1 (worst) to 100 (best). In 2014, NuVal updated their nutrient profiling system which changed the NuVal score on many foods. The investigators took advantage of this "natural experiment" to assess the extent to which a change in the NuVal score at a grocery chain influenced yogurt purchases, a category with a wide range of more and less healthy alternatives. The investigators supplemented the retail scanner data with a survey of consumers in stores using NuVal labels to obtain their experience with the labels and the extent to which they state it influences their purchases.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

665

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

US grocery shoppers

Description

Inclusion Criteria:

  • US adults regularly shopping at one of two retail chains using NuVal

Exclusion Criteria:

-

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

Cohorts and Interventions

Group / Cohort
ResearchNow NuVal shoppers
a convenience sample of 665 shoppers at two NuVal chains.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Diet quality as measured by the NuVal scores of yogurt purchased
Time Frame: From 12/30/12 to 8/22/15
The investigators measured diet quality using weekly yogurt sales data supplied by a US grocery chain. Using an econometric model of yogurt demand, the investigators associated changes in yogurt sales volume for each product before and after the NuVal score change with the direction and magnitude of the score change.
From 12/30/12 to 8/22/15

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Knowledge and stated use of NuVal labels by participants of an online survey
Time Frame: June 2016
The investigators conducted an online survey of 665 adult shoppers of two grocery chains that adopted NuVal. The survey elicited participants' awareness of the label, knowledge of NuVal, and stated use of NuVal and other nutrition labels.
June 2016

Collaborators and Investigators

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

Sponsor

University of Georgia

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Actual)

June 4, 2016

Primary Completion (Actual)

June 29, 2016

Study Completion (Actual)

August 31, 2017

Study Registration Dates

First Submitted

November 7, 2017

First Submitted That Met QC Criteria

December 26, 2017

First Posted (Actual)

January 4, 2018

Study Record Updates

Last Update Posted (Actual)

January 4, 2018

Last Update Submitted That Met QC Criteria

December 26, 2017

Last Verified

December 1, 2017

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • STUDY00003430

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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