Can a text message at the right time boost weight loss?
NCT ID NCT05625061
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether sending specific motivational messages at just the right moment helps young adults with overweight or obesity meet their daily weight loss goals. Over 200 participants used a smartphone app with a weight loss program, and some received extra messages targeting behaviors like weighing themselves, being active, or eating less red foods. The goal was to see if these 'just-in-time' messages improve daily adherence to healthy habits.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
behavioral intervention (just-in-time adaptive messaging via smartphone app)
What this could lead to
If successful, this approach could make digital weight loss programs more effective by sending the right motivational message at the right moment.
What could go wrong
This is a completed micro-randomized trial focused on short-term daily goals, not long-term weight loss. The messages may not work for everyone, and results may not apply outside this specific app and age group.
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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University of North Carolina at Chapel Hill
Chapel Hill, North Carolina, 27514, United States