Evidence map›Paper›PMID 33409921›Full record

SynthesisBiological trace element research2021

Relation Between Zinc and Thyroid Hormones in Humans: a Systematic Review.

Jéssica Batista Beserra, Jennifer Beatriz Silva Morais, Juliana Soares Severo, Kyria Jayanne Clímaco Cruz, Ana Raquel Soares de Oliveira, Gilberto Simeone Henriques, Dilina do Nascimento Marreiro

Erratum issuedAbstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Biological trace element research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 25 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 2 syntheses or guidelines pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. The role of nutrition on thyroid health and disease: myths and facts.Journal of endocrinological investigation · 2026
    Review
  5. Article
  6. Article
  7. Review
  8. Nutrition and Micronutrient Interactions in Autoimmune Thyroid Disorders: Implications for Cardiovascular Health.Pathophysiology : the official journal of the International Society for Pathophysiology · 2025
    Review
  9. Review
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Jéssica Batista BeserraDepartment of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Teresina, Piauí, Brazil.
Jennifer Beatriz Silva MoraisDepartment of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Teresina, Piauí, Brazil.
Juliana Soares SeveroDepartment of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Teresina, Piauí, Brazil.
Kyria Jayanne Clímaco CruzDepartment of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Teresina, Piauí, Brazil.
Ana Raquel Soares de OliveiraDepartment of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Teresina, Piauí, Brazil.
Gilberto Simeone HenriquesDepartment of Nutrition, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
Dilina do Nascimento MarreiroDepartment of Nutrition, Federal University of Piauí, Campus Minister Petrônio Portela, Teresina, Piauí, Brazil. dilina.marreiro@gmail.com.
Universidade Federal do Piauí · BRUniversidade Federal de Minas Gerais · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to systematically evaluate the relation between zinc and the thyroid hormones in humans. The search for articles was conducted using the Pubmed, Scopus, Cochrane Central Register of Controlled Trials (CENTRAL), and ScienceDirect databases on October 21 and 22, 2019, by two authors independently. The recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) were followed in the conduct of this review. The Cochrane Collaboration tool was used to assess the risk of bias of the trials included in this review. After the screening of the articles, eight studies that assessed the effects of zinc supplementation on thyroid hormone concentrations and ten studies that assessed the relationship between blood zinc concentrations and thyroid hormones were included in this systematic review. Although cross-sectional and case-control studies have shown a relationship between zinc deficiency and thyroid, the data from this systematic review provides inconclusive evidence with respect to the effects of zinc supplementation on thyroid hormone concentrations due to the divergence of the research found by the authors that only reports findings in patients suffering from some kind of disease, which cannot be generalized to the average human population.

Indexed as

Thyroid HormonesZincCase-Control StudiesCross-Sectional StudiesHumansThyroid GlandThyroid HormonesZincMineralsThyroid glandThyroid hormonesZinc

Identifiers

PMID33409921
OpenAlexW3120678679

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.