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Can a tonic drink tame blood sugar spikes? small study investigates

NCT ID NCT07030010

Symptom relief Sponsor: Australian Catholic University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This completed study tested whether a commercially available tonic drink could lower blood sugar spikes after a high-carb breakfast in 20 overweight or obese adults aged 30-64. Participants ate the same meal with either the tonic or a placebo drink on different days, and researchers measured blood sugar and insulin levels for three hours. The goal was to see if the tonic could help manage post-meal glucose responses.

What this could mean

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

Active substance
multi-ingredient liquid tonic drink
What this could lead to
If it works, this could point toward a simple dietary aid to help manage blood sugar spikes after meals.
What could go wrong
This is a very small, early study with only 20 people. Results may not apply to everyone, and the effect may be too small to matter in real life.

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

Jul 2025

Finished

Jan 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

30 to 64 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: * Aged ≥30-64 years * Body Mass Index (BMI) of ≥27.0 kg/m2 Exclusion Criteria: * younger than 30 or 65 years or older, * a BMI less than 27.0 kg/m2, * have an allergy to any of the components in the plant-based tonic (see section 6), * pregnant or breastfeeding, * regularly skipping breakfast (i.e. not consuming breakfast on 5/7 days per week), * any diagnosed metabolic (e.g. diabetes), endocrine (e.g. hyperthyroidism), gastrointestinal (e.g. Crohn's) or cardiovascular (e.g. heart failure) abnormalities, * on an energy-restricted diet; significant weight fluctuation in the previous 3 months (\>5% body weight), * high alcohol consumption (\>14 units/week) (as per Alcohol Drink Guidelines), * medication that is used to treat blood glucose, * unable to attend in person testing sessions, or * unable or unwilling to provide blood samples.

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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.

Overweight or obese adults

Contacts and locations

Locations

  • Australian Catholic University

    Melbourne, Victoria, 3065, Australia

More trials for these conditions

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