As published in journal Public Health Nutrition, study revealed that those who frequently eat fast food, 51 percent more likely to experience depression than those who ate little or none at all.
Next, the researchers also examined relationships between dose and response. In other words this means that "the more you eat fast food, greater risk for developing depression," said Almudena Sánchez-Villegas, principal investigator of the study.
The study showed that individuals who ate fast food and eating most baked goods are more likely to live alone, less active and have poor dietary habits, including eating less fruit, nuts, fish, vegetables and olive oil.
A long-term studyThe relationship between consumption of baked goods with depression is also not much different. "Even eating small portions associated with a significantly higher chance of experiencing depression," said researchers from the university Canary Islands.
In his study, researchers involved about 8964 participants who had never been diagnosed with depression or taking antidepressants. Each participant was observed for an average of six months, and 493 were diagnosed with depression or start consuming antidepressants.
The results showed that there were 657 new cases of depression of 12 059 people were analyzed for more than six months. Increased risk of depression by 42 percent was found in participants who consumed fast food.
Sánchez-Villegas concluded that "although more research is needed, the type of food intake must be controlled because it has an impact on health (obesity, cardiovascular disease) and mental."
Depression affects 121 million people around the world. This figure has been one of the major causes of disability worldwide. Furthermore, in countries with low income and middle-depression a major cause of disability.