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

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).

Conditions

• Obesity & Overweight

Interventions

OTHER

UK-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

OTHER

Chile-style octagonal labels

Chile-style octagonal labels displaying "HIGH ADDED SUGAR"

OTHER

text 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

OTHER

text-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

OTHER

teaspoon labels

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

OTHER

Hong 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

Sponsors & Collaborators

• Chinese University of Hong Kong

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

HEALTH_SERVICES_RESEARCH

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2026-05-01

Primary Completion

2027-04-30

Completion

2028-04-30