Sugary Drink Labeling Study
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Added sugar warning, Control label.
- Who it may be relevant to
- Registry conditions: Health Behavior. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Overview
This study aims to examine the effects of added sugar warning labels on sugary drinks. Participants will be assigned to view either added sugar warning labels or control labels, applied on sugary drinks in an experimental store. Participants will shop for beverages in the store and take a computer survey at 4 visits spaced approximately 1 week apart.
Detailed description
This study aims to determine whether new added sugar warnings on sugary drinks lead to decreased amount of added sugar purchased from sugary drinks. The investigators aim to enroll approximately 543 adults ages 18 and older who have consumed at least one sugary drink in the past week. Participants will attend 4 in-person study visits at the study experimental store, spaced approximately 1 week apart. Participants will be randomized to 1 of 2 trial arms at the time of scheduling. At the first visit, participants will provide written informed consent. At each study visit, participants will shop for beverages in the store and take a computer survey. Participants will view sugary drinks in the store labeled per their trial arm. Researchers will record in-store purchases, and other self-reported measures will be assessed via the computer surveys.
Interventions
- Behavioral Added sugar warning
The added sugar warning will say "High in added sugar." The warning will be in an octagon-shaped label. These warnings will be placed on the front of sugary drink containers in the experimental store. - Behavioral Control label
The control label will display a barcode in a square shape. These labels will be placed on the front of sugary drink containers in the experimental store.
Primary outcome measures
- Amount of added sugars purchased from sugary drinks [Time frame: Assessed once a week for up to 4 weeks, starting on the day of enrollment.]
Secondary outcome measures (8)
- Amount of total sugars purchased from all beverages [Time frame: Assessed once a week for up to 4 weeks, starting on the day of enrollment.]
- Volume of sugary drinks consumed in the past 7 days [Time frame: Assessed 1 time, approximately 3 weeks after enrollment.]
- Intentions to reduce sugary drink consumption [Time frame: Assessed once a week for up to 4 weeks, starting on the day of enrollment.]
- Forgoing sugary drinks [Time frame: Assessed approximately 1 week, 2 weeks, and 3 weeks after enrollment.]
- Learning something new [Time frame: Assessed once, approximately 3 weeks after enrollment.]
- Correct identification of beverages high in added sugar [Time frame: Assessed once, on the day of enrollment.]
- Thinking about harms of sugary drinks [Time frame: Assessed once a week for up to 4 weeks, starting on the day of enrollment.]
- Perceived healthfulness of sugary drinks [Time frame: Assessed once a week for up to 4 weeks, starting on the day of enrollment.]
Eligibility criteria
Inclusion criteria
- 18 years and older
- Bought sugary drinks from a store at least once during the past week
- Willing to attend 4 in-person study appointments
Exclusion criteria
- Living in the same household as someone else in the study
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Open label
- Primary purpose
- Prevention
Study locations
United States · 1 center
- The University of North Carolina at Chapel Hill — Chapel Hill
Identifiers
NCT: NCT07294053 · 24-0901a · R01DK135743