Effects of Chlorella on Running Performance

The Influence of Chlorella Supplementation on Running Performance

Not applicable Interventional University College, London · NCT06479993

This study tests if taking chlorella can help regular runners improve their running performance over three weeks.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment20 (estimated)
Ages18 Years to 50 Years
SexAll
SponsorUniversity College, London Academic / other
Locations1 site (London)
Trial IDNCT06479993 on ClinicalTrials.gov

What this trial studies

This study investigates the impact of chlorella supplementation on running performance among regular runners. Participants will undergo a double-blind, randomized, placebo-controlled design, where they will take either chlorella or a placebo for three weeks. The study will assess various aspects of running performance through a series of controlled exercise tests, including VO2max and submaximal running tests. Each participant will visit the laboratory three times for baseline assessments and performance evaluations.

Who should consider this trial

Good fit: Ideal candidates are healthy individuals aged 18-50 who run regularly and are training competitively.

Not a fit: Patients who are taking blood thinners, have allergies to algae, or are on immunosuppressant medication may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance athletic performance in runners through nutritional supplementation.

How similar studies have performed: Previous studies have shown potential benefits of chlorella supplementation in cyclists, but its effects on runners remain largely untested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Aged 18-50.
* Run regularly (3-4 times a week).
* Train with a purpose to compete.
* Consider running to be your main sport.
* Be comfortable running continuously for over 30-minutes at moderate intensity.
* Represent a local running club.

Exclusion Criteria:

* Individuals taking blood thinners.
* Known allergies to algae/mould and iodine.
* Any illness/conditions identified on PARQ (please see attached PARQ)
* Taking immunosuppressant medication

Where this trial is running

London

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions AthletesHealthyRunningVO2maxLactateOxygen Consumption
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.