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Can collagen pills boost your workout results?

NCT ID NCT06061315

Symptom relief Sponsor: University of Southern Denmark 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether taking collagen peptides after resistance training helps untrained overweight men aged 30-60 build more lean muscle and strength compared to exercise alone. Eighty men were randomly assigned to receive either collagen or a placebo alongside a supervised workout program. Researchers measured changes in body composition and muscle strength using DXA scans and strength tests.

What this could mean

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

Active substance
collagen peptides (dietary supplement)
What this could lead to
If it works, this could point toward a simple way to boost muscle gain and fat loss in men starting exercise.
What could go wrong
This is a small, completed trial with only 80 participants, so results may not apply to everyone. Supplements often show modest effects.

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

80 people

The number who actually took part.

Started

Sep 2023

Finished

Nov 2024

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 60 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: * Male, between 30 and 60 years of age * Fat mass \>25 % as measured by bioelectrical impedance analysis * Stable weight (±5 %) and eating behaviour within the last 3 months. * Signed informed consent Exclusion Criteria: * Regular physical activity \>60 min / week * Stabile or progressive diseases/conditions (including medication) contraindicating or disabling participation in intensive exercise training and/or with potential to affect training adaptation beyond normal variation. For example: * Contraindications against physical stress corresponding guidelines of American College of Sports Medicine (ACSM) * Subjective symptoms during exercise (e.g., unusual physical exhaustion, dyspnoea, nausea) * Moderate to severe mobility limitation (i.e., due to rheumatic disease) * Diagnosis of cancer within the last 5 years * Diabetes mellitus I and II uncontrolled arterial hypertension (systolic blood pressure \>155 for mmHg and/or diastolic blood pressure \>94 mm Hg; mild hypertension under resting condition will be allowed but such participants will be recommended to consult their general practitioner). * Conditions contraindicating the supplementation protocol. * Contraindications against nutritional or ergogenic supplements * Allergy/aversion against animal protein * Liver or kidney diseases with a non-permission to ingest certain concentrations of protein.

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As listed by the trial registrant

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

Body composition Lean body mass Muscle power Muscle strength

Contacts and locations

Locations

  • The Department of Sports Science and Clinical Biomechanics at University of Southern Denmark

    Odense, 5000, Denmark

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