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Systematic ReviewResearchPatient EducationMedication Safety

Pediatric iodine supplementation showed selective benefits, but evidence was sparse

The Cochrane database of systematic reviews (PubMed)Sep 10, 2026

AI-summarized from the linked source. Educational brief, not medical advice.

Brief summary

A Cochrane review of eight randomized trials found a slight cognitive-function improvement with iodine supplementation and likely reductions in hypothyroidism and infant mortality, but each of those findings came from a single trial and important safety outcomes were not reported.

What NurseJet pulled from the source

The review included 2,528 participants. Cognitive function improved slightly in one study of 166 children; hypothyroidism was reduced in one study of 264 participants, and all-cause mortality was reduced in one infant study of 617 participants.

Why this matters for nurses

Iodine deficiency prevention is important for growth and neurodevelopment, but the review shows that several clinically important conclusions rest on one trial and that harms were not adequately reported.

Bedside takeaway

Avoid one-size-fits-all supplementation advice; key benefits came from single trials and harms were not reported.

Key takeaways

  • Iodine supplementation may make little or no difference to weight, based on three studies with 658 participants and low-certainty evidence.
  • The effect on goitre was very uncertain because the two-study estimate was imprecise and highly heterogeneous.
  • No included study reported iodine-related adverse events or health-related quality of life.

Practice implications

  • Assess diet and supplement use during pediatric teaching, and reinforce only the iodine strategy recommended by the patient's clinician, local public-health program, or facility protocol.

Limitations & cautions

  • Abstract-only summary. The eight trials used widely differing ages, doses, routes, and follow-up periods; several key outcomes came from one trial, and adverse-event data were absent.
  • AI-summarized from the linked source. Review the original article before applying to practice.

Citations

Exact source links

Public citations are filtered to exact credible source pages. Homepage-only or invalid links stay in admin review and are not shown here.

The Cochrane database of systematic reviews (PubMed)

The Cochrane database of systematic reviews (PubMed). Iodine supplementation for preventing iodine deficiency disorders in children and adolescents.

Open original source

https://pubmed.ncbi.nlm.nih.gov/42720098/

Professional education only

This summary does not replace clinical judgment, facility policy, provider orders, or official guidelines. Verify practice changes against the original source and local protocol.

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