Warning labels and tax on junk food tested in UK supermarket study
NCT ID NCT07339982
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether putting warning labels on unhealthy foods and adding a 20% tax changes what people buy. Around 600 UK adults will shop in a simulated online Tesco store. Researchers will compare the nutritional quality of their orders across four groups: labels only, labels plus tax, current traffic-light labels plus tax, and a control group with no changes.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If it works, this could show that simple labels and taxes help people choose healthier foods, which might guide future public health policies.
What could go wrong
This is a small, short-term study using a simulated online shop, not real-world behavior. Results may not reflect actual long-term shopping habits.
Disclaimer
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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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Contacts and locations
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Locations
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Online (UK-wide) - Qualtrics
RECRUITINGLiverpool, United Kingdom
Contact Phone: •••-•••-•••• Email: •••••@•••••