Will warning labels on junk food change what you buy?
NCT ID NCT07533877
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether adding a warning label to ultra-processed foods (like sugary yogurts) changes what people say they would buy. Over 7,000 U.S. adults viewed mock food packages online with or without a warning label. Researchers measured purchase intent and how healthy people thought the products were.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- ultra-processed food warning label
- What this could lead to
- If effective, these labels could help people make healthier food choices and inform future FDA nutrition labeling policies.
- What could go wrong
- This was an online experiment with mock products, not a real shopping setting. Actual behavior may differ, and the impact on long-term diet or health is unknown.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Johns Hopkins Bloomberg School of Public Health
Baltimore, Maryland, 21205, United States
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