Evidence map›Paper›PMID 31071930›Full record

SynthesisNutrients2019

Zinc Intake and Status and Risk of Type 2 Diabetes Mellitus: A Systematic Review and Meta-Analysis.

José C Fernández-Cao, Marisol Warthon-Medina, Victoria H Moran, Victoria Arija, Carlos Doepking, Lluis Serra-Majem, Nicola M Lowe

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Nutrients, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 5 pooled it
8.7field-weighted citation impact, top 1% 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

71 citing papers in PubMed, 5 syntheses or guidelines pooled it, 126 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  6. Article
  7. Review
  8. Observational
  9. Article
  10. Review
  11. Type 2 diabetes mellitus and zinc dysregulation: From basic and epidemiological evidence to interventions.Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2025
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Role of Zinc and Magnesium in Glycemic Status Among the Saudi Population.International journal of general medicine · 2025
    Article
  19. Article
  20. Review

11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 3 countries.

José C Fernández-CaoDepartment of Nutrition and Dietetics, Faculty of Heath Sciences, University of Atacama, Av. Copayapu 2862, Copiapó, 1530000 Atacama Region, Chile. jose.fernandez.cao@uda.cl.ORCID 0000-0002-1697-3443
Marisol Warthon-MedinaFood Databanks National Capability, Quadram Institute Bioscience, Norwich Research Park, Norwich, Norfolk NR4 7UA, UK. marisol@warthon-medina.com.ORCID 0000-0003-1318-397X
Victoria H MoranMaternal and Infant Nutrition and Nurture Unit, University of Central Lancashire, Preston, Lancashire PR 1 2HE, UK. VLMoran@uclan.ac.uk.
Victoria ArijaResearch Group in Nutrition and Mental Health (NUTRISAM), Institut d'Investigació Sanitària Pere Virgili (IISPV), Rovira i Virgili University, Reus, 43201 Tarragona, Spain. victoria.arija@urv.cat.
Carlos DoepkingDepartment of Nutrition and Dietetics, Faculty of Heath Sciences, University of Atacama, Av. Copayapu 2862, Copiapó, 1530000 Atacama Region, Chile. carlos.doepking@uda.cl.ORCID 0000-0001-6281-2686
Lluis Serra-MajemResearch Institute of Biomedical and Health Sciences, University of Las Palmas de Gran Canaria and CHUIMI, Canarian Health Service, 35016 Las Palmas de Gran Canaria, Spain. lluis.serra@ulpgc.es.ORCID 0000-0002-9658-9061
Nicola M LoweInternational Institute of Nutritional Sciences and Food Safety Studies, University of Central Lancashire, Darwin Building c/o Psychology Scholl Office, Preston, Lancashire PR1 2HE, UK. NMLowe@uclan.ac.uk.ORCID 0000-0002-6934-2768
University of Lancashire · GBUniversity of Atacama · CLInstitut de Recerca Biomèdica Catalunya Sud · ESUniversidad de Las Palmas de Gran Canaria · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Zinc could have a protective role against type 2 diabetes mellitus (T2DM). This systematic review and meta-analysis aimed to evaluate the association between dietary, supplementary, and total zinc intake, as well as serum/plasma and whole blood zinc concentration, and risk of T2DM. Observational studies, conducted on cases of incident diabetes or T2DM patients and healthy subjects that reported a measure of association between zinc exposure and T2DM, were selected. Random effects meta-analyses were applied to obtain combined results. Stratified meta-analyses and meta-regressions were executed to assess sources of heterogeneity, as well as the impact of covariates on the findings. From 12,136 publications, 16 studies were selected. The odds ratio (OR) for T2DM comparing the highest versus lowest zinc intake from diet was 0.87 (95% CI: 0.78-0.98). Nevertheless, no association between supplementary or total zinc intake from both diet and supplementation, and T2DM was observed. A direct relationship was found between serum/plasma zinc levels and T2DM (OR = 1.64, 95% CI: 1.25-2.14). A moderately high dietary zinc intake, in relation to the Dietary Reference Intake, could reduce by 13% the risk of T2DM, and up to 41% in rural areas. Conversely, elevated serum/plasma zinc concentration was associated with an increased risk of T2DM by 64%, suggesting disturbances in zinc homeostasis.

Indexed as

Nutritional StatusDiabetes Mellitus, Type 2HumansOdds RatioRisk FactorsZincZincepidemiologymeta-analysissystematic reviewtrace elementstype 2 diabetes mellituszinc intakezinc status

Identifiers

PMID31071930
PMCPMC6567047
OpenAlexW2943837640

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.