Front-of-package Warning Labels for Sugar Content in Sugar-sweetened Beverages

Front-of-package Warning Labels for Sugar Content in Sugar-sweetened Beverages: An Online Randomized Experiment

Status

Not yet recruiting

Phases

Unknown

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT07570576

Enrollment

2800

Registered

2026-05-06

Start date

2026-05-01

Completion date

2028-04-30

Last updated

2026-05-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity & Overweight

Keywords

sugar label, online trial, SSB

Brief summary

The goal of this online randomized trial is to examine the effectiveness of Front-of-package (FOP) warning labels for added sugar content on the intent-to-purchases of SSBs in an affluent Asian setting. We hypothesize the FOP warning labels are significantly associated with a reduction of consumers' purchase intention of sugar-sweetened beverages (SSBs).

Interventions

OTHERUK-style traffic light labels

UK-style traffic light labels displaying "HIGH ADDED SUGAR" in a red circle, "MEDIUM ADDED SUGAR" in a yellow circle, "LOW ADDED SUGAR" in a green circle, or "ZERO ADDED SUGAR" in a green circle

OTHERChile-style octagonal labels

Chile-style octagonal labels displaying "HIGH ADDED SUGAR"

OTHERtext warning labels

text warning labels stating that drinking beverages with added sugar contributes to diabetes and tooth decay, applied to low-, medium-, and high-added-sugar beverages

OTHERtext-and-graphic warning labels

text-and-graphic warning labels displaying the same message as the text warning label with simple graphics representing diabetes and tooth decay, applied to low-, medium-, and high-added-sugar beverages

OTHERteaspoon labels

teaspoon labels showing the number of teaspoons of added sugar per 100 mL, applied to all added-sugar levels

OTHERHong Kong-style labels

Hong Kong-style labels, adapted from the voluntary "Salt / Sugar" Label Scheme for prepackaged food products, displaying "LOW SUGAR" or "NO SUGAR" inside a diamond shape with a tick mark at the bottom

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

HEALTH_SERVICES_RESEARCH

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

• Hong Kong residents aged 18 years or older and be able to understand either English or Chinese

Exclusion criteria

* Refuse to provide informed consent * Failing an attention check, defined as an incorrect response to a multiple-choice question asking "What month is it currently?", * Implausibly short completion times, defined as completing the survey in less than 133 seconds, which corresponds to half of the median completion time observed in pilot data

Design outcomes

Primary

Measure	Time frame
Proportion of the participant selects a sugar-sweetened beverage in the beverage choice task	Enrollment

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 13, 2026