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Healthy volunteers wear glucose monitors to unlock diet secrets

NCT ID NCT06900439

Knowledge-focused Sponsor: Zoe Global Limited 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This completed study looked at how healthy people's blood sugar changes after eating, using a continuous glucose monitor for 14 days. About 1,189 participants ate a standard test meal and provided stool samples to see how their gut microbiome might affect blood sugar control. The goal was to better understand glucose monitor accuracy and how diet and gut health influence blood sugar over time.

What this could mean

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

Active substance
standardized test meal and personalized dietary program
What this could lead to
If successful, this could help improve how we use continuous glucose monitors to understand individual blood sugar responses and design better dietary advice.
What could go wrong
This is an observational sub-study, not a treatment trial. Results may not apply to people with health conditions, and the findings are exploratory.

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

1,189 people

The number who actually took part.

Started

Mar 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 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Enrolled in the ZOE product \& purchased a Gut Health Retest at month 4 * Any sex * Minimum 18 years of age * Body mass index (BMI) greater than or equal to 18.5 kg/m2 * If under care for any chronic medical conditions (including type 2 diabetes), you have confirmed with your treating physician that this sub study is safe for you. This does not apply to conditions listed in the exclusion criteria. * Able and willing to comply with the study protocol and provide informed consent before your ZOE Gut Health Retest is fulfilled and posted. * Live in the United Kingdom Exclusion Criteria: * Cannot safely eat the standardised meals (part of the ZOE product) which contain standard UK ingredients, e.g. due to allergy or recent gastrointestinal surgery * Cannot safely use the cgm (per manufacturer's contraindications for use including critically ill, pregnant, receiving dialysis, or have an implantable medical device) * Are pregnant * Have had a heart attack (myocardial infarction), stroke/transient ischemic attack (TIA), or major surgery in the last two months * Are unable to read and write in English, as the ZOE app is only available in English. * Are diagnosed with type 1 diabetes and/or require the use of exogenous insulin or oral hypoglycaemic medications to regulate blood sugar levels * Have an active eating disorder (e.g. anorexia nervosa or bulimia nervosa) * Have an active gut or digestive system disease (e.g. IBD, Crohn's disease or ulcerative colitis) * Are undergoing chemotherapy treatment for cancer * Unable to complete study tasks by 31 May 2025

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As listed by the trial registrant

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

Glucose control Gut microbiome

Contacts and locations

Locations

  • ZOE Limited

    London, SE17RW, United Kingdom

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