Assessing Dietary Intake of Selected Food Components Using Short Questionnaires

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Conditions studied: Nutritional Status, Iron-deficiency, Diet

In brief

The aim of the study is to validate short questionnaires for assessing dietary intake of selected food components, with a focus on dietary fibre and iron. Two internationally developed short questionnaires (FiberScreen \[for dietary fibre\] and IRONQ-FFQ \[for iron\]) were adapted to the Slovenian context and will be compared with the standard 24-hour dietary recall method.

Key facts

Study ID

NCT07442305

Run by

Institute of Nutrition, Slovenia (Nutris)

People needed

50

Starts

2026-03-01

Expected to finish

2027-12-31

Last updated by the study team

2026-03-02

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Willingness to participate in the study.
• Signed Statement of Informed and Voluntary Consent to Participate in the Study.
• Age between 18 and 65 years at the time of enrolment in the study.
• Willingness to comply with all study procedures and to keep a dietary record in accordance with the provided instructions.

You may not qualify if…

• Pregnancy or breastfeeding.
• Specific dietary practices followed by a small proportion of the population (veganism, LCHF, calorie-restricted diets; note: vegetarians are not excluded).
• Diets prescribed by medical professionals.
• Mental incapacity that prevents adequate understanding or participation.
• Reasons for excluding a participant during the study:
• Inability to participate in the study
• Wishes to discontinue participation
• Incomplete data provided

Full record on ClinicalTrials.gov

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