Interrelatioship between Diet Quality and Depressive Symptoms in Elderly

Area of Science:

• Gerontology
• Nutritional Psychiatry
• Epidemiology

Background:

• Observational studies suggest a link between diet quality and depression.
• Few studies have investigated the bidirectional relationship between diet and depressive symptoms.

Purpose of the Study:

• To examine the interrelationship between diet quality and depressive symptoms in an elderly population.
• To understand how dietary patterns influence mental health in older adults.

Main Methods:

• Cross-sectional, population-based study involving 1,378 elderly individuals in Pelotas, Brazil.
• Diet quality assessed using a food frequency questionnaire.
• Depressive symptoms measured with the Geriatric Depression Scale (GDS).
• Logistic regression analysis used to determine associations.

Main Results:

• The prevalence of depressive symptoms was 15.3%.
• Low-quality diet was associated with a higher likelihood of depressive symptoms (OR=2.1-3.8).
• Elderly individuals with depression were more likely to consume a low-quality diet (OR=2.4).

Conclusions:

• A low-quality diet is associated with an increased risk of depressive symptoms in the elderly, and vice versa.
• Findings underscore the importance of promoting healthy food choices, particularly for depressed elderly individuals.
• Encouraging healthy eating can contribute to promoting healthy aging.