Assessing Iodine Intake Levels in Preschool Children
Official title: Study on Dietary Intake Levels of Iodine for 3-6 Years Old Pre-school Children
Run by Tianjin Medical University · NCT06074770 · Data updated 2026-11-12
This study is testing how much iodine preschool children need in their diets to stay healthy by looking at their food intake and urine samples.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 3 Years to 6 Years |
| Sex | All |
| Enrollment | 2650 (estimated) |
| Sponsor | Tianjin Medical University Academic / other |
| Locations | 1 site (Yuncheng, Shandong) |
| Status | Recruiting |
| Started | May 5, 2023 |
| Main results expected | December 31, 2026 |
| Study ends | December 31, 2026 |
| Registry record updated | October 10, 2023 |
| Trial ID | NCT06074770 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are preschool children aged 3-6 years, both with mild malnutrition and those with good nutritional status.
✕Probably not a fit
Patients who are long-term low-protein or low-energy malnourished may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study aims to evaluate the dietary intake levels of iodine in preschool children aged 3-6 years. By conducting an iodine balance experiment with diets of varying iodine content, the study seeks to determine the lowest iodine requirement and establish safe intake levels for this age group. The research will involve collecting 24-hour urine samples and dietary records from children in regions with differing iodine levels in China, specifically Shandong and Tianjin. The findings will contribute to the revision of dietary intake recommendations for iodine in children.
Why it matters
Potential benefit: If successful, this study could provide critical data to establish safe iodine intake levels for preschool children, potentially improving their health and development.
How similar studies have gone: While there is limited direct evidence on iodine intake levels for preschool children, similar studies have successfully established dietary recommendations for other nutrients.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * for children with mild malnutrition: hemoglobin \<110g / L, or weight for age \<P50 according to the Chinese 2009 child growth and development reference standard, or BMI z score \<-1 according to the WHO Child Growth Assessment Software (version 3.2.2 ) ; have not been treated for thyroid disease; have not used amiodarone and other drugs (including iodine supplements) during the investigation; have no major diseases ,chronic diseases and family history. * for children with good nutritional status: healthy,-1 \<BMI z score \<1; have not been treated for thyroid disease; have not used amiodarone and other drugs (including iodine supplements) during the investigation; have no major diseases ,chronic diseases and family history; Exclusion Criteria: long-term low-protein; long-term low-heat energy malnutrition
Where it's running
-
Shandong Institute for Endemic Disease Control and Research
Yuncheng, Shandong, China Recruiting
Study contacts
- Study coordinator: wen Chen, Master
- Email: wenchen@tmu.edu.cn
- Phone: 022-83336610
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Optimizing nutrition for very low birth weight infants
This study looks at how the nutrition from human milk affects the growth and health of very low birth weight infants to help create better feeding plans for them.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.