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One size Doesn't fit all: new study aims to personalize diet for blood sugar control

NCT ID NCT06989164

Knowledge-focused Sponsor: Stanford University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 from Stanford University is looking for 100 volunteers to help understand why people's blood sugar levels respond differently to the same foods. Participants will wear a continuous glucose monitor and test various meals, supplements, and short exercises. The goal is to identify different metabolic types and lay the groundwork for personalized dietary advice.

What this could mean

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

Active substance
foods, supplements, and short exercise
What this could lead to
If successful, this could lead to personalized dietary recommendations that help people better control their blood sugar based on their unique biology.
What could go wrong
This is an early observational study with only 100 participants, so results may not apply to everyone. It is designed to gather information, not to test a treatment.

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

About 100 people

The number the study aims to enrol. It can still change while the study runs.

Started

Oct 2025

Expected to finish

Nov 2028

An estimate. End dates often move.

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 80 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: * BMI (body mass index) \>19 kg/m2 but \< 45 kg/m2 * HbA1c \< or equal to 7.0% while not on antihyperglycemic medications * Be willing to provide written informed consent for all study procedures. * Able to commute to Stanford campus for on-site visits Exclusion Criteria: * recent (\<6mos) CVD (cardiovascular disease) event * active malignancy * kidney/liver disease * pregnancy/lactation * chronic inflammatory disease * eating disorder * bariatric surgery * history of acute pancreatitis * current use of antihyperglycemic, diabetogenic, or weight loss medications * heavy alcohol use * physical activity \>2 hours/day * inability to come to Stanford CTRU (Clinical and Translational Research Unit) for metabolic testing

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Conditions

The condition(s) this trial relates to.

prediabetes syndrome type 2 diabetes mellitus

As listed by the trial registrant

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

Diabetes mellitus, type 2 Healthy Prediabetes

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Stanford University

    RECRUITING

    Stanford, California, 94304, United States

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