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.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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
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Locations
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Johns Hopkins Bloomberg School of Public Health
Baltimore, Maryland, 21205, United States