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Hydration hype or help? new study tests water vs. diet drinks

NCT ID NCT07179107

Knowledge-focused Sponsor: Arizona State 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how different amounts of water and non-sugar drinks affect hydration, blood sugar, and heart health in 144 adults. Participants will follow specific drinking plans over several weeks. The goal is to see if simply drinking more fluids—with or without sweeteners—can lower the risk of diabetes and heart disease.

What this could mean

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

Active substance
water and non-sugar-sweetened beverages
What this could lead to
If successful, this could show that drinking more water or non-sugar beverages improves blood sugar control and heart health, offering a simple way to reduce disease risk.
What could go wrong
This is a small, early-stage study with only 144 participants, so results may not apply to everyone. It tests short-term effects, not long-term health outcomes.

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 144 people

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

Started

Sep 2025

Expected to finish

Dec 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

20 to 65 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: * BMI 18.5-24.9 or 30.0-39.9 kg/m2 * HbA1c ≤7% * Age 20-65 y * available for 8 consecutive weeks same day and time Exclusion Criteria: * Diabetes * HbA1c \>7% BMI ≤18.5, BMI of 25 to \<30, or ≥ 40 kg/m2 * night shifting work * losing or gaining weight during the last 2 months (\>5 lbs. fluctuation) * thyroid medication * bariatric surgery * Habitual strenuous exercise (\>120 min/week) Strenuous exercise is defined as activities that take hard physical effort and make you breathe much harder than normal. * Construction and other workers that spend signifant portion of their work day outdoors * Commuting by bicycle * Eating disorders * Use of aspirin during the duration of the study * Cancer * Renal disease (including kidney stones or recurrent urinary track infections * Hepatic disease * Cardiac conditions * Current infection requiring medication * Chronic, contagious, infectious diseases such as tuberculosis, Hepatitis A, B, C, or HIV * Medication that could affect appetite or body weight regulation * GLP1-RA medication * Anti-depressent SSRI medication * Testosterone replacement therapy * Participating in another study at the same time * Unable to abstain from alcohol during the study * Unable to limit caffeinated beverage intake to 1 cup per day * Donated blood during the past two months * Uneasibly acessable veins * Does not have smart phone

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Conditions

The condition(s) this trial relates to.

cardiovascular disorder Dehydration glucose metabolism disease

As listed by the trial registrant

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

Cardiovascular Dehydration Dehydration (physiology) Glucose abnormalities

How to take part

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

  1. The places running it

    2 sites. 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

  • 850 PBC

    RECRUITING

    Phoenix, Arizona, 85004, United States

  • 850 Phoenix Bioscience Core

    NOT_YET_RECRUITING

    Phoenix, Arizona, 85004, United States

More trials for these conditions

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