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Whey protein after workouts: does it change Athletes' mineral levels?

NCT ID NCT07488273

Knowledge-focused Sponsor: Monira Aldhahi 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at whether taking whey protein powder right after training for 8 weeks affects blood levels of calcium, phosphorus, magnesium, and iron in elite male track-and-field athletes. Fifty-nine athletes took 30 grams of whey protein daily after exercise. The goal was to see if this common supplement alters important minerals during intense training.

What this could mean

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

Active substance
whey protein powder
What this could lead to
If it works, this could help coaches and athletes understand how whey protein affects key minerals like calcium and iron during training.
What could go wrong
This is a small, non-randomized, open-label study without a placebo, so results may be biased or not apply to all athletes. It only measured mineral levels, not performance or 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

59 people

The number who actually took part.

Started

Feb 2026

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 30 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: * Male elite track-and-field athletes * Age 18-30 years * Engaged in structured training program * No supplement use in past 3 months Exclusion Criteria: * Use of nutritional or mineral supplements * Metabolic or musculoskeletal disorders * Acute injury affecting performance * Use of ergogenic aids (e.g., creatine, anabolic agents)

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As listed by the trial registrant

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

Athletic performance

Contacts and locations

Locations

  • Training Centers

    Tunis, Tunisia

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