Healthier dietary habits are associated with lower depression and anxiety among medical students at a private university in Lima, Peru: A cross-sectional study

INTRODUCTION: Anxiety and depression are common conditions among medical students. In recent years, numerous factors associated with these disorders have been investigated; however, evidence regarding the role of dietary habits remains limited. OBJECTIVE: To evaluate the association between dietary...

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Autores principales: Adriana Daniel Armas, Diego S. Polanco Taipe, David R. Soriano‐Moreno
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Lenguaje:inglés
Publicado: 2026
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author Adriana Daniel Armas
Diego S. Polanco Taipe
David R. Soriano‐Moreno
author_browse Adriana Daniel Armas
David R. Soriano‐Moreno
Diego S. Polanco Taipe
author_facet Adriana Daniel Armas
Diego S. Polanco Taipe
David R. Soriano‐Moreno
author_sort Adriana Daniel Armas
collection Producción científica
description INTRODUCTION: Anxiety and depression are common conditions among medical students. In recent years, numerous factors associated with these disorders have been investigated; however, evidence regarding the role of dietary habits remains limited. OBJECTIVE: To evaluate the association between dietary habits and the presence of anxiety and depressive symptoms among medical students at a private university in Lima, Peru. METHODS: An analytical cross-sectional study was conducted in 2025 among medical students aged 18 years and older. Dietary habits were assessed using the Healthy Eating Index, while anxiety and depression were measured using the GAD-7 and PHQ-9 scales, respectively. Poisson regression with robust variance was used to calculate prevalence ratios (PR). RESULTS: A total of 264 students were included. Only a minority had healthy dietary habits (1.1%), and the prevalences of anxiety (34.9%) and depression (45.1%) were high. For each additional point in the Healthy Eating Index, the prevalence of anxiety decreased by 3% (aPR: 0.97; 95% CI: 0.95 to 0.98), while the prevalence of depression decreased by 2% (aPR: 0.98; 95% CI: 0.96 to 0.99). CONCLUSION: Dietary habits were inversely associated with the prevalence of anxiety and depression among medical students. These findings highlight the importance of promoting healthy dietary patterns as part of comprehensive strategies for the prevention and promotion of mental health in this population.
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spelling openalex:W7165199126Healthier dietary habits are associated with lower depression and anxiety among medical students at a private university in Lima, Peru: A cross-sectional studyAdriana Daniel ArmasDiego S. Polanco TaipeDavid R. Soriano‐Morenodietary habitsdepressionanxietymedical studentsHealthy Eating Indexmental healthhealthy eating promotionstudent mental healthHealthcare professionals’ stress and burnoutHealth and Lifestyle StudiesNutritional Studies and DietINTRODUCTION: Anxiety and depression are common conditions among medical students. In recent years, numerous factors associated with these disorders have been investigated; however, evidence regarding the role of dietary habits remains limited. OBJECTIVE: To evaluate the association between dietary habits and the presence of anxiety and depressive symptoms among medical students at a private university in Lima, Peru. METHODS: An analytical cross-sectional study was conducted in 2025 among medical students aged 18 years and older. Dietary habits were assessed using the Healthy Eating Index, while anxiety and depression were measured using the GAD-7 and PHQ-9 scales, respectively. Poisson regression with robust variance was used to calculate prevalence ratios (PR). RESULTS: A total of 264 students were included. Only a minority had healthy dietary habits (1.1%), and the prevalences of anxiety (34.9%) and depression (45.1%) were high. For each additional point in the Healthy Eating Index, the prevalence of anxiety decreased by 3% (aPR: 0.97; 95% CI: 0.95 to 0.98), while the prevalence of depression decreased by 2% (aPR: 0.98; 95% CI: 0.96 to 0.99). CONCLUSION: Dietary habits were inversely associated with the prevalence of anxiety and depression among medical students. These findings highlight the importance of promoting healthy dietary patterns as part of comprehensive strategies for the prevention and promotion of mental health in this population.Articlehttps://doi.org/10.1371/journal.pone.0346062W7165199126enPLoS ONE1932-62032026-06-18
spellingShingle dietary habits
depression
anxiety
medical students
Healthy Eating Index
mental health
healthy eating promotion
student mental health
Healthcare professionals’ stress and burnout
Health and Lifestyle Studies
Nutritional Studies and Diet
Adriana Daniel Armas
Diego S. Polanco Taipe
David R. Soriano‐Moreno
Healthier dietary habits are associated with lower depression and anxiety among medical students at a private university in Lima, Peru: A cross-sectional study
title Healthier dietary habits are associated with lower depression and anxiety among medical students at a private university in Lima, Peru: A cross-sectional study
title_full Healthier dietary habits are associated with lower depression and anxiety among medical students at a private university in Lima, Peru: A cross-sectional study
title_fullStr Healthier dietary habits are associated with lower depression and anxiety among medical students at a private university in Lima, Peru: A cross-sectional study
title_full_unstemmed Healthier dietary habits are associated with lower depression and anxiety among medical students at a private university in Lima, Peru: A cross-sectional study
title_short Healthier dietary habits are associated with lower depression and anxiety among medical students at a private university in Lima, Peru: A cross-sectional study
title_sort healthier dietary habits are associated with lower depression and anxiety among medical students at a private university in lima peru a cross sectional study
topic dietary habits
depression
anxiety
medical students
Healthy Eating Index
mental health
healthy eating promotion
student mental health
Healthcare professionals’ stress and burnout
Health and Lifestyle Studies
Nutritional Studies and Diet
topic_facet dietary habits
depression
anxiety
medical students
Healthy Eating Index
mental health
healthy eating promotion
student mental health
Healthcare professionals’ stress and burnout
Health and Lifestyle Studies
Nutritional Studies and Diet
url https://doi.org/10.1371/journal.pone.0346062
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