Overall diet quality, food groups and mental health disorders among Brazilians older than 15 years old: Brazilian National Health Survey - 2019.

Background: Adherence to a nutrient-dense diet can have an impact on depression and other mental health issues. Little is known whether this is attributed to some or all components and how these differ in a country that is known to have a vast diversity of nutrient-dense foods. The aim was to examine whether there is a relationship between individual food groups with depression and other mental health disorders.

NuMoOS - COVID-19 Nutrition and Mood Online Survey: Perception about dietary aspects, stress, anxiety, and depression in the social isolation of Coronavirus Disease 2019.

Background: COVID-19 (coronavirus disease 2019) is an infectious disease which led to a pandemic. Social isolation was therefore adopted as the main measure to prevent contamination and maintain public health. Some changes can occur in stress levels, sleep quality, dietary consumption, and mood (such as levels of anxiety and depression).

Omega 3 Consumption and Anxiety Disorders: A Cross-Sectional Analysis of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil).

Few studies have evaluated the association between diet and mental disorders, and it has been established that ω-3 (-3) fatty acids may have a beneficial effect for sufferers of anxiety disorders. This study is part of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)—a population-based cohort study on diet and mental health—and searched for associations between anxiety disorders and consumption of -3 polyunsaturated fatty acids (PUFA). The study had a cross-sectional design, with a total sample of 12,268 adults.