Cited by 91Trace Elements in HealthNutritional Studies and DietHeavy Metal Exposure and Toxicity

Dietary zinc is associated with a lower incidence of depression: Findings from two Australian cohorts

Vashum, Khanrin Phungamla, McEvoy, Mark, Milton, Abul Hasnat, McElduff, Patrick, Hure, Alexis, Byles, Julie, Attia, John·2014·Journal of Affective Disorders

Abstract

Background Several animal and human studies have shown that zinc plays a role in reducing depression, but there have been no longitudinal studies in both men and women on this topic. The aim of this study was to investigate dietary zinc, and the zinc to iron ratio, as predictors of incident depression in two large longitudinal studies of mid-age and older Australians.Methods Data were self-reported, as part of the Australian Longitudinal Study on Women׳s Health (women aged 50-61 years) and Hunter Community Study (men and women aged 55-85 years). Validated food frequency questionnaires were used to assess dietary intake. Energy-adjusted zinc was ranked using quintiles and predictors of incident depression were examined using multivariate logistic regression.Results Both studies showed an inverse association between dietary zinc intake and risk of depression, even after adjusting for potential confounders. Compared to those with the lowest zinc intake those with the highest zinc intake had significantly lower odds of developing depression with a reduction of about 30-50%. There was no association between the zinc to iron ratio and developing depression in either study.Limitations Dietary assessment was carried out only at baseline and although adjustments were made for all known potential confounders, residual confounding cannot be entirely excluded.Conclusions Low dietary zinc intake is associated with a greater incidence of depression in both men and women, as shown in two prospective cohorts. Further studies into the precise role of zinc compared to other important nutrients from the diet are needed.

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Crossref · 10.1016/j.jad.2014.05.016

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Authors
Vashum, K. P., McEvoy, M., Milton, A. H., McElduff, P., Hure, A., Byles, J., & Attia, J.
Affiliations
  • University of Newcastle Australia (AU)
  • Hunter Medical Research Institute (AU)
  • John Hunter Hospital (AU)
Corresponding author
Vashum, Khanrin Phungamla
Venue
Journal of Affective Disorders
Publisher
Elsevier BV
Published
2014-09
Volume
166
Pages
249-257
ISSN
0165-0327 (ISSN-L)
OpenAlex
W2039178606
Cited by
91
References
40
Citations by year
2026: 3 · 2025: 3 · 2024: 7 · 2023: 5 · 2022: 8 · 2021: 9 · 2020: 9 · 2019: 7 · 2018: 7 · 2017: 10 · 2016: 11 · 2015: 9 · 2014: 3
FWCI
10.25
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Affective Disorders (publishedVersion)
  • PubMed (publishedVersion)
  • NOVA (University of Newcastle Australia) (submittedVersion)
Funders
Department of Health and Ageing, Australian Government
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Trace Elements in Health
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Heavy Metal Exposure and Toxicity
Keywords
dietary zinc, depression incidence, micronutrient intake, Australian Longitudinal Study on Women's Health, prospective cohort
MeSH terms
Aged, Australia, Depression, Depressive Disorder, Feeding Behavior, Female, Humans, Longitudinal Studies, Male, Middle Aged, Prospective Studies, Risk, Zinc, Incidence, Self Report

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