Suspended

Effect of Krill Oil Supplementation on Red Blood Cell Physiology Against Changes in Markers of Iron Metabolism.

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What is being tested

THYROX (Atlantic krill oil).

+ Placebo

Drug
Who is being recruted

Metabolic Diseases

+ Nutritional and Metabolic Diseases

+ Iron Metabolism Disorders

From 18 to 24 Years
+6 Eligibility Criteria
See all eligibility criteria
How is the trial designed

Basic Science Study

Phase 4
Interventional
Study Start: March 2024
See protocol details

Summary

Principal SponsorPoznan University of Physical Education
Study ContactJustyna Cichoń-Woźniak, mscMore contacts
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: March 23, 2024

Actual date on which the first participant was enrolled.

This study investigates the effects of krill oil supplementation on red blood cell health and iron metabolism. Participants in this study include athletes or individuals who regularly engage in physical competition. The main aim is to understand how krill oil, which contains omega-3 fatty acids and other beneficial compounds, affects various blood markers and iron-related parameters in the body. This research is important as it could provide insights into how dietary supplements like krill oil can support optimal blood function and iron levels, potentially benefiting those with specific dietary needs or deficiencies. Participants are randomly assigned to two groups: one receives krill oil supplements, and the other receives a placebo, with neither the participants nor the researchers knowing who is in which group. The study lasts for six weeks, during which the krill oil group takes four capsules a day. Researchers measure various blood parameters, including complete blood counts and oxidative stress markers, using advanced laboratory techniques. These measurements help evaluate the effects of krill oil on red blood cell function and iron metabolism. The study is designed with safety in mind, although any potential risks associated with supplement intake are carefully monitored.

Official TitleEffect of Krill Oil Supplementation on Red Blood Cell Physiology Against Changes in Markers of Iron Metabolism.
NCT06151548
Principal SponsorPoznan University of Physical Education
Study ContactJustyna Cichoń-Woźniak, mscMore contacts
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

30 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Basic Science Study

Basic science studies help researchers understand how the body works or how a disease develops. They don't test treatments, but they build the foundation for future therapies.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

From 18 to 24 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Metabolic DiseasesNutritional and Metabolic DiseasesIron Metabolism Disorders

Criteria

3 inclusion criteria required to participate
training experience a minimum of five years
minimum training time per week 240 minutes
all competitors qualified for the Polish Youth Rowing Team
3 exclusion criteria prevent from participating
health problems,
antibiotic therapy,
taking other supplements during the study period or a month earlier

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

2 intervention groups are designated in this study

This study does not include a placebo group 

Treatment Groups

Group I

Experimental
(n = 15), who will receive four times a day one capsule of a supplement called THYROX (Atlantic krill oil). The daily content of krill oil is 2000 mg, including omega-3 fatty acids 350 mg, EPA - 240 mg, DHA - 110 mg, phospholipids - 800 mg, astaxanthin 200 mg. The supplementation period will be six weeks.

Group II

Experimental
receiving placebo

Study Objectives

Primary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Recruiting

Poznań University of Physical Education

Poznan, PolandOpen Poznań University of Physical Education in Google Maps
SuspendedOne Study Center