Daily Weigh-In: a simple trick to stop weight gain?
NCT ID NCT04044794
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether weighing yourself daily with a wireless scale can help adults with obesity manage their weight. About 400 people from primary care clinics took part. They were asked to weigh themselves each day and see their weight trend on the scale's display. The goal was to see if this simple habit could prevent continued weight gain over two years.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- daily self-weighing with a wireless digital scale
- What this could lead to
- If it works, this simple habit could help people with obesity prevent further weight gain without expensive programs.
- What could go wrong
- This is a behavioral study, not a drug or device. Results may vary, and long-term adherence to daily weighing is uncertain.
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
-
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
-
396 people
The number who actually took part.
- Started
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Nov 2020
- Finished
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Oct 2025
- Lead sponsor
-
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
-
19 to 65 years
- Sex
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Anyone
- Healthy volunteers
-
Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age 19-65 years * Body mass index (BMI) 30 - 50 kg/m2 * Receives care at one of the participating primary care clinics * Resides in one location at least 5 days each week * Possesses a smartphone with data plan * Wi-Fi or Bluetooth internet connection in home Exclusion Criteria: * Pregnancy or anticipating pregnancy during study duration. This is a weight loss study and weight gain/loss due to pregnancy and/or delivery would confound study results. Additionally, weight loss is not recommended for pregnant women. * Unwilling or unable to do any of the following: give informed consent, accept random assignment, attend five measurement assessments * Likely to relocate and no longer be seen at UAB primary care in the next 2 years * Weight loss ≥5% of body weight in past 6 months (other than postpartum) * Weight \>180 kg (396lbs) due to the limitation of the scale being used. * Current participation in another weight loss study * Bariatric surgery or revision in the past two years * Prescription weight loss medications within the past 6 months * Another household member already participating in the study * Potential participants living farther than 50 miles driving distance from UAB will be excluded from the study. It is expected that those living farther away will be more difficult to retain as study participants.
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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
-
University of Alabama at Birmingham
Birmingham, Alabama, 35205, United States
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