(FOX) -- Pastas, red meat and soda may increase a woman's risk of depression.
Researchers studied 40,000 women who had no sign of clinical depression at the start of the study.
Those who sipped soda, ate fatty red meats or consumed refined grains on a daily basis were up to 41% more likely to suffer from depression.
While foods in the Mediterranean Diet, such as olive oil, wine and vegetables appeared to fight off depression.
A specific reason why diet may affect depression risk was not determined -- but analysts believe the inflammation caused by certain foods may play a role.
The study appears in the journal "Brain, Behavior and Immunity."