The Effect of Shelf Nutrition Labels on Purchases

Obesity Clinical Trial

Official title:

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

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03390075
• Other study ID #: STUDY00003430
• Status: Completed
• Phase: N/A
• First received: November 7, 2017
• Last updated: December 26, 2017
• Start date: June 4, 2016
• Est. completion date: August 31, 2017

Study information

• Verified date: December 2017
• Source: University of Georgia
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 665
• Est. completion date: August 31, 2017
• Est. primary completion date: June 29, 2016
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

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

Exclusion Criteria:

Related Conditions & MeSH terms

• Obesity

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
University of Georgia

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Diet quality as measured by the NuVal scores of yogurt purchased	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	Knowledge and stated use of NuVal labels by participants of an online survey	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