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Smart glasses that nudge you to eat less and slower show promise in small study

NCT ID NCT06547320

Symptom relief Sponsor: The Miriam Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested a sensor worn on eyeglasses that tracks when you eat and sends messages to your smartphone to encourage eating less or eating slower. 43 overweight adults wore the device for one week without any messages, then for two weeks with the messages. The goal was to see if these real-time nudges could reduce total calories and slow down eating pace.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
sensor-based behavioral intervention
What this could lead to
If it works, this could offer a new, low-effort way to help people reduce how much they eat and eat more slowly, which may support weight management.
What could go wrong
This is a very small, early-phase trial with only 43 participants and no long-term follow-up. The device may be inconvenient or not work well in real-world settings, and results may not apply to everyone.

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

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

43 people

The number who actually took part.

Started

Jan 2025

Finished

May 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

18 to 65 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show 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: * Body mass index (BMI) between 27 and 45 kg/m-squared * Weight stable within 5% in the past 6 months * Self-reports basic familiarity with use of a smartphone Exclusion Criteria: * Diagnosed diabetes (type 1 and 2) * Any poorly controlled medical condition that could affect weight and/or eating behavior (e.g., hypothyroidism) * Medical conditions or use of medications or diets/supplements known to affect energy regulation or appetite * Difficulty chewing or swallowing * Diagnosed eating disorder * Night or shift work * Current participation in a weight loss program * History of bariatric surgery * Current pregnancy or lactation within the past 1 year, or planning a pregnancy during the study participation period * Consuming a medically-prescribed or unusual diet (e.g., macrobiotic) * Food allergies or sensitivities, or other conditions which result in avoidance of a wide range of foods (e.g. celiac disease, tree nut allergy) * Reported recreational drug use * Report of conditions that would significantly interfere with an ability to follow the protocol including terminal illness, substance abuse, or other significant uncontrolled psychiatric problem

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder Overweight

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Overweight and obesity

Contacts and locations

Locations

  • Boston University

    Boston, Massachusetts, 02215, United States

  • The Miriam Hospital Weight Control and Diabetes Resarch Center

    Providence, Rhode Island, 02903, United States

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