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Fizzy science: do prebiotic sodas beat regular soda on hunger and blood sugar?

NCT ID NCT07105826

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at how four different drinks—two prebiotic sodas, regular Coca-Cola, and Diet Coke—affect hunger, blood sugar, insulin, and appetite hormones in healthy men aged 18-40. Ten participants visited the lab four times, each time drinking one of the beverages in a random order after fasting. The goal was to see if prebiotic sodas offer any benefits over sugary or diet sodas for appetite and metabolic health.

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

10 people

The number who actually took part.

Started

Aug 2025

Finished

Mar 2026

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 40 years

Sex

Male participants only

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: * Gender: Male * Age: 18-40 years * Health Status: Healthy, with no significant medical conditions * Body Mass Index (BMI): 18.5-24.9 kg/m² Exclusion Criteria * Diabetes: Diagnosed diabetes (Type 1 or Type 2) * Gastrointestinal Disorders: Any diagnosed gastrointestinal conditions (e.g., irritable bowel syndrome, inflammatory bowel disease) * Liver Disease: Any diagnosed liver conditions * Kidney Disease: Any diagnosed kidney conditions * Cardiovascular Disease: Any diagnosed cardiovascular conditions * Hypertension: Diagnosed high blood pressure * Recent Illness or Infection: Any illness or infection within the past 30 days that could affect study outcomes * Tobacco or Nicotine Use: Current use of tobacco or nicotine products (e.g., smoking, vaping) * Phenylketonuria (PKU): A genetic disorder affecting phenylalanine metabolism, due to the presence of aspartame in Diet Coke * Medication Use: Use of medications or supplements that affect glucose metabolism, insulin response, or appetite * Intermittent Fasting: Engagement in intermittent fasting or inconsistent time-restricted feeding patterns * Other Health Conditions: Any other health conditions that, in the opinion of the investigators, could interfere with study participation or outcomes

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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

  • Texas Christian University

    Fort Worth, Texas, 76180, United States