Effects of Sugary Drink Warning Labels

Stopped early · Not applicable

Conditions studied: Obesity, Diabetes, Weight Gain

In brief

The primary objective of this study is to determine to what degree sugary drink warning labels increase consumers' knowledge about the potential health harms of sugary drinks and reduce sugary drink intake. The study is designed to answer three additional questions: 1) Do some warning labels work better than others? 2) What is the effect of warning labels over time? 3) If warning labels influence behavior, is it because they increase knowledge or simply provide a salient reminder that some drinks are less healthy? This study will test the effect of repeated exposure to warning labels on total calories purchased over time and assess whether knowledge or salience better explain label effects.

Key facts

Study ID

NCT03654586

Run by

University of Pennsylvania

People needed

337

Starts

2018-07-30

Expected to finish

2020-03-12

Last updated by the study team

2021-04-23

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: accepted.

You may not qualify if…

• not a primary caregiver of a child under 12 years old
• <18 years old
• cannot read and speak English
• does not drink sugary drinks at least 12 times per month and have a child who does the same
• is not the primary grocery shopper for their family
• does not have regular internet access

Where it is running

• Blockley Hall — Philadelphia, Pennsylvania, United States

Full record on ClinicalTrials.gov

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