Monitoring iodine intake in children aged 2-10 years

Jodkids: a Study of Iodine Intake Among Children Aged 2-10 Years

Observational DTU National Food Institute · NCT06234982

This study is testing how well children aged 2-10 in Denmark are getting enough iodine from their diet since the country increased iodine levels in food, to make sure it's safe and healthy for their growth and development.

Quick facts

Study typeObservational
Enrollment600 (estimated)
Ages2 Years to 10 Years
SexAll
SponsorDTU National Food Institute Academic / other
Locations1 site (Kongens Lyngby, Copenhagen)
Trial IDNCT06234982 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess the effects of increased iodine fortification levels implemented in Denmark in 2019 on the dietary iodine intake and urinary iodine excretion among children aged 2-10 years. It consists of two sub-studies: one estimating iodine intake and food sources, and the other validating dietary records against actual iodine intake measured in urine. The study will involve 600 participants to identify potential risks of excessive iodine intake and ensure adequate iodine levels for optimal thyroid health and neural development in children.

Who should consider this trial

Good fit: Ideal candidates for this study are children aged 2-10 years living in Denmark.

Not a fit: Patients with chronic diseases affecting iodine metabolism or those whose parents cannot complete the required questionnaires may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could help optimize iodine fortification levels to ensure children receive adequate iodine for healthy development.

How similar studies have performed: Other studies have shown the importance of monitoring iodine intake in children, but this specific approach to assess the impact of fortification levels is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Children aged 2-10 years

Exclusion Criteria:

* Chronic diseases that can influence iodine metabolism (metabolic diseases, kidney or liver diseases or diabetes)
* Parents/guardians do not have the opportunity to fill in the basic questionnaire or the diet questionnaire electronically

Where this trial is running

Kongens Lyngby, Copenhagen

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 Diet HabitIodine DeficiencyIodine Toxicity
Last reviewed 2026-06-13 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.