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Protein vs. carbs: which Pre-Workout drink keeps you cooler in the heat?

NCT ID NCT07646990

Knowledge-focused Sponsor: Providence College 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at whether drinking a high-protein or high-carbohydrate shake before exercising in the heat changes how your body produces heat and handles temperature. Sixteen healthy adults will walk on a treadmill in a hot room after drinking one of two shakes. Researchers will measure metabolism, core temperature, and kidney stress markers to see which drink is better for staying cool.

What this could mean

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

Active substance
Protein shake or carbohydrate shake
What this could lead to
If successful, this could help people choose the best pre-exercise meal to stay safe and perform well in hot conditions.
What could go wrong
This is a very small, early-stage study (16 people) that only looks at short-term effects. Results may not apply to everyone or real-world exercise.

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 16 people

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

Expected to start

Jun 2026

An estimate. Start dates often move.

Expected to finish

May 2027

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 45 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: * Able to walk or run up to 5 mph on a treadmill * Able to consume products containing dairy (no allergy or dietary restrictions) Exclusion Criteria: * Following a diet that excludes any macronutrient group (low-carb or low-fat) * Diagnosed cardiovascular or metabolic diseases (hypertension, diabetes) * Diagnosed heat illness in past 3 months (heat exhaustion, heat stroke)

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Conditions

The condition(s) this trial relates to.

Heat Stress Disorders Motor Activity

As listed by the trial registrant

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

Diet-induced thermogenesis Heat stress Protein consumption

How to take part

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

  1. 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 ↗

  2. 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.

More trials for these conditions

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