Oslo Footballplayers Iron Supplementation and Training (FIT) Study
NCT ID: NCT04526678
Last Updated: 2025-05-23
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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ACTIVE_NOT_RECRUITING
NA
26 participants
INTERVENTIONAL
2020-08-11
2030-12-31
Brief Summary
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Detailed Description
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It is not known if young menstruating Norwegian female athletes cover their need for iron via the diet or whether extra intake in the form of a low-dose supplement could be beneficial in terms of hemoglobin levels and sports performance. Because iron preparations are not prescription and are sold in pharmacies, health food stores and larger grocery stores, this can lead to uncritical intake of iron. Since the use of iron preparations has been documented to be widespread in foreign sports environments, it is important to both characterize the iron status of Norwegian athletes and at the same time examine the beneficial value of iron supplements on sports performance as well as monitoring effects on microbiota composition and intestinal health.
The aim of the study is therefore to characterize the diet and iron status of young female elite football players and examine the relationship between iron intake, iron status, hemoglobin levels, intestinal health and sports performance. In addition, the effects of low-dose iron supplements will be investigated in relation to iron stores, hemoglobin levels and sports performance and whether such supplementation affects intestinal health, microbiota composition and biomarkers for oxidative stress.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
BASIC_SCIENCE
SINGLE
Study Groups
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Iron supplements
The intervention group will ingest 27 mg iron supplement per day for three months while the control group will not ingest iron supplements.
Iron supplement (27mg)
The participants will be randomized to an intervention group or a control group. The intervention group will ingest 27mg iron daily for three months.
Control group
The control group will not ingest iron supplements.
No interventions assigned to this group
Interventions
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Iron supplement (27mg)
The participants will be randomized to an intervention group or a control group. The intervention group will ingest 27mg iron daily for three months.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* Medical conditions that are worsened by taking iron supplements
* Already taking iron supplements
16 Years
FEMALE
Yes
Sponsors
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Norwegian School of Sport Sciences
OTHER
University of Oslo
OTHER
Norwegian Olympic Sports Centre
UNKNOWN
Norwegian University of Life Sciences
OTHER
Responsible Party
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Siv K Bohn
Professor
Locations
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Norwegian University of Life Sciences
Ås, , Norway
Countries
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Other Identifiers
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969159570_KBM_SKB2020
Identifier Type: -
Identifier Source: org_study_id
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