Egg consumption may be associated with the risk of depression.
We aimed to assess this possible relationship in the context of the Birjand longitudinal aging study (BLAS).
In this cross-sectional study PHQ-9 was used to assess depression in a total of 1364 adults above 60 years of age, participating in the first stage of BLAS between September 2018 to April 2019. Socio-demographic information, anthropometric indices, and number of whole eggs consumed per week were assessed. Depression was assessed across the egg consumption groups: low (≤1 eggs/week), moderate (≥2 to ≤3 eggs/week), and high (≥4 eggs/week), and the association was investigated using logistic regression.
Mean egg intake in the studied population was 2.4 eggs/week. In the crude model and after adjustment for age and sex, moderate and high egg consumption were both associated with lower risk of depression in older adults (
Both moderate and high egg intake had reverse association with depression, and reduced the odds of depression among the elderly to approximately 30–40%. Future longitudinal studies could better confirm this association.
