AI health coach gives Real-Time weight loss tips via smartphone
NCT ID NCT07682571
First seen Jul 06, 2026 · Last updated Jul 07, 2026 · Updated 1 time
Summary
This study tests an artificial intelligence (AI) health coach that provides real-time, personalized weight management support through a smartphone app. Adults with overweight or obesity wear a fitness tracker and use the app to get tips on physical activity, sleep, diet, and healthy habits. The goal is to see if this approach is practical and helpful for weight control.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- AI health coach-based just-in-time adaptive intervention
- What this could lead to
- If successful, this could offer a scalable, low-cost digital tool to help people manage weight through personalized, real-time behavior-change support.
- What could go wrong
- This is a small pilot study with only 31 participants, so results may not apply to everyone. The AI coach's suggestions may not always be accurate or helpful.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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31 people
The number who actually took part.
- Started
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Mar 2026
- Finished
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May 2026
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 60 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Aged 18 to 60 years. * Body mass index of 24 kg/m2 or higher, meeting the Chinese criteria for overweight or obesity. * Able to use a smartphone, WeChat-based platform, and wearable device during the study period. * Willing to participate in the AI health coach-based just-in-time adaptive intervention and complete study assessments. * Provided written informed consent. Exclusion Criteria: * Pregnancy, lactation, or planning pregnancy during the study period. * Severe cardiovascular, cerebrovascular, hepatic, renal, endocrine, psychiatric, or other major diseases that may affect study participation or safety. * Medical conditions or medications that may substantially affect body weight or body composition. * Contraindications to physical activity or inability to complete the intervention procedures. * Current participation in another weight-management intervention or clinical study. * Inability to understand the study procedures or complete the required assessments.
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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
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4th Affiliated Hospital, School of Medicine, Zhejiang University
Yiwu, Zhejiang, 322000, China
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