An apple a day: Protective associations between nutrition and the mental health of immigrants in Canada
Abstract
Purpose Mental illness represents a major public health burden among Canada's large immigrant population. A burgeoning cross-sectional, longitudinal, and experimental evidence base implicates nutrition in mental health. Healthier diets (e.g., those rich in certain micro-nutrients) may benefit cognitive, social, and emotional functioning through attenuated inflammation and other bio-psychological pathways. The present study examined associations between nutrition and three markers of mental health among immigrants to Canada.Methods Employing cross-sectional data from immigrant respondents (n = 37,071) to a nationally representative population-based survey (the Canadian Community Health Survey: CCHS 2011-2014), we modelled associations of daily fruit and vegetable consumption with three mental health outcomes: anxiety and/or mood disorder diagnosis, being distressed (assessed via the 6-item Kessler Psychological Distress Scale), and having good self-rated overall mental health. Multivariable logistic regression analyses were employed, adjusting for various socio-demographic and lifestyle-related variables.Results Higher consumption of fruit and vegetables demonstrated significant, protective associations with odds of having a mood and/or anxiety disorder, being distressed, and self-rated good mental health. Such patterns of association were similar regardless of ethno-cultural minority status and recency of immigration. Moreover, the protective associations of nutrition and mental health were independent of socio-demographic, health, and lifestyle factors.Conclusions Results suggested evidence of protective associations between healthy nutritional intake and mental illness among a large-scale sample of immigrants in Canada. Importantly, the protective associations of healthier diets with immigrants' mental health were independent of various markers of healthy lifestyles (e.g., general health status, physical activity, alcohol use). Healthy dietary intake may, therefore, be worth consideration in efforts to prevent mental illness among immigrants.
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Nutrients derived from diet, such as vitamins, minerals, poly-unsaturated fats, and amino acids support healthy brain function.
“Nutrients derived from diet, such as vitamins, minerals, poly-unsaturated fats, and amino acids support healthy brain function [51–55].”
From Role of diet and its effects on the gut microbiome in the pathophysiology of mental disorders (2022) · cites this paper as [53]
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Nutritional psychiatry: Towards improving mental health by what you eat
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- Authors
- Emerson, S. D., & Carbert, N. S.
- Affiliations
- University of British Columbia (CA)
- Corresponding author
- Emerson, Scott D.
- ORCID
- Emerson, Scott D.
- Venue
- Social Psychiatry and Psychiatric Epidemiology
- Published
- 2018-10-23
- Volume
- 54
- Issue
- 5
- Pages
- 567-578
- ISSN
- 0933-7954 (ISSN-L)
- 1433-9285
- OpenAlex
- W2897939477
- Cited by
- 35
- References
- 44
- Citations by year
- 2026: 6 · 2025: 3 · 2024: 3 · 2023: 5 · 2022: 7 · 2021: 7 · 2020: 2 · 2019: 1 · 2018: 1
- FWCI
- 3.24
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Social Psychiatry and Psychiatric Epidemiology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Psychology › Clinical Psychology › Migration, Health and Trauma
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
- Social Sciences › Psychology › Social Psychology › Mental Health Treatment and Access
- Keywords
- immigrant mental health, fruit and vegetable intake, anxiety disorders, mood disorders, psychological distress, self-rated mental health, ethnocultural minorities, mental illness prevention
- MeSH terms
- Diet, Healthy, Adolescent, Adult, Aged, Anxiety, Canada, Cross-Sectional Studies, Diet Surveys, Female, Fruit, Health Status, Humans, Life Style, Male, Mental Health, Middle Aged, Vegetables, Logistic Models, Mood Disorders, Emigrants and Immigrants, Protective Factors
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