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White bread vs wholemeal: does body weight affect blood sugar spikes?

NCT ID NCT07158762

Knowledge-focused Sponsor: City, University of London 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 study measured blood sugar levels after eating in 20 healthy adults—10 with normal weight and 10 with overweight or obesity. Participants ate white or wholemeal bread with orange juice and butter, and their blood glucose was checked over two hours. The goal was to see if body weight affects blood sugar spikes after meals, which are linked to type 2 diabetes risk.

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

20 people

The number who actually took part.

Started

May 2022

Finished

Jul 2022

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 50 years

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: • healthy adults of 18 - 50 years Exclusion Criteria: * participants with diabetes * digestive system diseases * BMI \< 18.5 kg/m2 * coeliac disease * other chronic diseases * blood clotting issues * those who could not consume the study meals due to food allergies or other reasons

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Conditions

The condition(s) this trial relates to.

Overweight

As listed by the trial registrant

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

Healthy participants Normal weight adults Overweight or obese adults

Contacts and locations

Locations

  • Coventry University

    Coventry, United Kingdom

More trials for these conditions

Other studies related to the condition(s) this trial covers.