Processed Foods Linked to Depression

By Erin Froehlich

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In a fast-paced world where thrift and convenience are king, processed foods are often what's for dinner.

Most of us know that a diet made up of processed foods, including white breads, high-fat dairy products, fried foods, and processed meats can negatively affect our body, but new studies show that they can negatively affect our mood as well. Could this be a factor in the ever growing number of depression sufferers? Researchers at the University College London believe so.

In their study of 3,500 people, they found those who ate a diet high in whole foods had a 26% lower risk of developing depression, while those who ate a diet high in processed foods had a 56% higher risk.

"This study adds to an existing body of solid research that shows the strong links between what we eat and our mental health, says Dr Andrew McCulloch, chief executive of the Mental Health Foundation. To explain this phenomenon, researchers look at the nutritonal facts in both diets.

Processed foods contains high levels of sodium (refined salt), sugar, trans fats, saturated fats, and artificial sugars, colors, and preservatives. All of these are linked to coronary heart disease, and coronary heart disease has been linked to depression. However, it is not only the excess of salt, fat, and artifical ingredients that is to blame. Perhaps even more important is what a processed food diet lacks.

Whole food diets are rich in chromium, magnesium, zinc, calcium, polyunsaturated oils, folate, and antioxidents, all of which support healthy brain function. Try making small changes like choosing whole wheat instead of white bread, nut milk instead of dairy, and fish instead of beef. Swap out crunchy snacks from a box for more fresh fruits and vegetables. Your body and your brain are sure to benefit.

Sources:

http://news.bbc.co.uk/2/hi/8334353.stm

http://generalmedicine.suite101.com/article.cfm/depression_linked_to_processed_food

http://www.ajcn.org/cgi/content/full/72/2/585S