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Ultra-Processed Food Consumption and Mental Health: A Systematic Review and Meta-Analysis of Observational Studies
Abstract
Since previous meta-analyses, which were limited only to depression and by a small number of studies available for inclusion at the time of publication, several additional studies have been published assessing the link between ultra-processed food consumption and depression as well as other mental disorders. We aimed to build on previously conducted reviews to synthesise and meta-analyse the contemporary evidence base and clarify the associations between the consumption of ultra-processed food and mental disorders. A total of 17 observational studies were included (n = 385,541); 15 cross-sectional and 2 prospective. Greater ultra-processed food consumption was cross-sectionally associated with increased odds of depressive and anxiety symptoms, both when these outcomes were assessed together (common mental disorder symptoms odds ratio: 1.53, 95%CI 1.43 to 1.63) as well as separately (depressive symptoms odds ratio: 1.44, 95%CI 1.14 to 1.82; and, anxiety symptoms odds ratio: 1.48, 95%CI 1.37 to 1.59). Furthermore, a meta-analysis of prospective studies demonstrated that greater ultra-processed food intake was associated with increased risk of subsequent depression (hazard ratio: 1.22, 95%CI 1.16 to 1.28). While we found evidence for associations between ultra-processed food consumption and adverse mental health, further rigorously designed prospective and experimental studies are needed to better understand causal pathways.
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Separate assessments across six cross-sectional designs found a similar direct association between greater ultra-processed food exposure and prevalent combined common mental disorder outcomes (odds ratio 1.53, 95% confidence interval 1.43 to 1.63; credibility class I; GRADE low).
“We observed similar associations in separate assessments of prevalent combined common mental disorder outcomes across six cross sectional designs (odds ratio 1.53, 1.43 to 1.63; class I; low)”
From Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses (2024) · cites this paper as [50]
Analysis found evidence supporting a direct association between greater ultra-processed food exposure and higher risk of anxiety outcomes (odds ratio 1.48, 95% confidence interval 1.37 to 1.59; credibility class I; GRADE low).
“as well as anxiety outcomes (odds ratio 1.48, 1.37 to 1.59; class I; low)”
From Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses (2024) · cites this paper as [50]
Analysis across two cohorts found a direct association between greater ultra-processed food exposure and incident depressive outcomes (odds ratio 1.22, 95% confidence interval 1.16 to 1.28; credibility class II; GRADE low).
“incident depressive outcomes across two cohorts (odds ratio 1.22, 1.16 to 1.28; class II; low)”
From Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses (2024) · cites this paper as [50]
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Cited by
Sorted by citations
Lane, M. M., Gamage, E., Du, S., Ashtree, D. N., McGuinness, A. J., Gauci, S., Baker, P., Lawrence, M., Rebholz, C. M., Srour, B., et al. (2024) · BMJ · doi:10.1136/bmj-2023-077310 · Cited by 1,153
Self-citation
Metadata
- Authors
- Lane, M. M., Gamage, E., Travica, N., Dissanayaka, T., Ashtree, D. N., Gauci, S., Lotfaliany, M., O’Neil, A., Jacka, F. N., & Marx, W.
- Affiliations
- Food & Mood Centre, The Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine, Deakin University, Geelong, VIC 3220, Australia
- Venue
- Nutrients
- Publisher
- MDPI AG
- Published
- 2022-06-21
- Volume
- 14
- Issue
- 13
- Pages
- 2568
- ISSN
- 2072-6643
- PMC
- PMC9268228
- Cited by
- 320
- References
- 22
- Language
- en
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