Comparison of Nutritional Information With Iron-succinate Supplementation in Healthy Women
NCT ID: NCT06648018
Last Updated: 2024-10-18
Study Results
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Basic Information
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ENROLLING_BY_INVITATION
NA
80 participants
INTERVENTIONAL
2024-10-15
2025-01-31
Brief Summary
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Detailed Description
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Methods The study will use a randomized controlled non-blinded design, and 80 healthy women aged 20-40 years whom regularly exercise will be included. Data collection will be made through online, standardized forms using the digital platform REDCap 13.1.28 (Vanderbilt University, Nashville, TN, USA). Study personnel will register laboratory and body weight results through the same system.
Recruitment and participation criteria Individuals will be recruited through any or all of the following: at primary care center(s) in Sweden, via posters at the care center(s), via care providers during visits to the care center(s) and/or via external advertisement through social media and/or at public spaces.
Inclusion criteria will be menstruating women aged 20 to 40 years who are healthy and regularly exercise. As reimbursement, participants will receive 2000 SEK for the drawing of blood samples at the end of their study participation.
Inclusion visit
Individuals interested to participate will be booked for an inclusion visit with a study nurse during which oral and written information of the study will be provided, and a written consent will be given. Online, participants will then be asked to fill in the following information:
* A detailed online questionnaire regarding age, use of nicotine and tobacco products, and any drugs or supplements.
* A questionnaire on menstruation quantities including the number of menstruation days, the number of heavy menstruation days, and the menstrual product use, which has been shown to accurately estimate menstrual blood loss.24
* The Alcohol use disorders identification test (AUDIT)
* A food frequency questionnaire (FFQ)
* To evaluate physical activity, we will use the validated questions from the Swedish National Board of Health and Welfare,25 as well as the validated SED-GIH question of The Swedish School of Sport and Health Sciences (GIH) on sedentary behavior which was also developed with support from the Swedish National Board of Health and Welfare.26
* A questionnaire on gastrointestinal symptoms, including the number of bowel movements per week and the quality of them assessed using the Bristol stool scale (BSS). Gastrointestinal transit time can be approximated as defecation frequency, or more accurately, as stool consistency 27, and the BSS is one such questionnaire.
Body height and weight, with participants in light clothing without shoes, as well as fasting blood samples will be collected by a licensed laboratory: serum iron, serum transferrin, serum transferrin saturation, serum ferritin, and serum soluble transferrin receptor, blood status (hemoglobin, MCV, MCH, MCHC, thrombocytes, leukocytes), and plasma high-sensitivity C-reactive protein (hsCRP).
Intervention/control period Participants will be randomized 1:1 to either follow written dietary recommendations to increase their dietary iron intake, or to use a daily oral supplement of 100 mg of iron succinate.
Conclusion visit Of the above information, the following will be repeated after the conclusion of the 8 week intervention/control period: questionnaires on physical activity and gastrointestinal symptoms, the FFQ, and the drawing of blood samples.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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Nutritional information
Written information about food with high iron content.
Nutritional information
Written nutritional information about food with high content of iron.
100mg iron-succinate per day as a pill.
Participants get 56 pills of 100mg iron-succinate to take one/day for 8 weeks.
Iron-succinate
100 mg of Iron-succinate per day.
Interventions
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Nutritional information
Written nutritional information about food with high content of iron.
Iron-succinate
100 mg of Iron-succinate per day.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
20 Years
40 Years
FEMALE
No
Sponsors
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Primary Health Care Center, Region Östergötland
UNKNOWN
Linkoeping University
OTHER_GOV
University Hospital, Linkoeping
OTHER
Responsible Party
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Fredrik H Nystrom
MD PhD full professor, senior consultant in internal medicine
Principal Investigators
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Fredrik H Nyström, MD PhD Professor
Role: PRINCIPAL_INVESTIGATOR
Linkoeping University
Locations
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Faculty of Medicine and Health Sciences Linköping University
Linköping, , Sweden
Countries
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Other Identifiers
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Fe-minine health and exercise
Identifier Type: -
Identifier Source: org_study_id
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