The link between fast food and depression confirmed

March 30, 2012, FECYT - Spanish Foundation for Science and Technology

According to a recent study headed by scientists from the University of Las Palmas de Gran Canaria and the University of Granada, eating commercial baked goods (fairy cakes, croissants, doughnuts, etc.) and fast food (hamburgers, hotdogs and pizza) is linked to depression.

Published in the Public Health Nutrition journal, the results reveal that of , compared to those who eat little or none, are 51% more likely to develop .

Furthermore, a dose-response relationship was observed. In other words this means that "the more fast food you consume, the greater the risk of depression," explains Almudena Sánchez-Villegas, lead author of the study, to SINC.

The study demonstrates that those participants who eat the most fast food and commercial baked goods are more likely to be single, less active and have poor dietary habits, which include eating less fruit, nuts, fish, vegetables and olive oil. Smoking and working more than 45 hours per week are other prevalent characteristics of this group.

A long-term study

With regard to the consumption of commercial , the results are equally conclusive. "Even eating small quantities is linked to a significantly higher chance of developing depression," as the university researcher from the Canary Islands points out.

The study sample belonged to the SUN Project (University of Navarra Diet and Lifestyle Tracking Program). It consisted of 8,964 participants that had never been diagnosed with depression or taken antidepressants. They were assessed for an average of six months, and 493 were diagnosed with depression or started to take antidepressants.

This new data supports the results of the SUN project in 2011, which were published in the PLoS One journal. The project recorded 657 new cases of depression out of the 12,059 people analysed over more than six months. A 42% increase in the risk associated with fast food was found, which is lower than that found in the current study.

Sánchez-Villegas concludes that "although more studies are necessary, the intake of this type of food should be controlled because of its implications on both health (obesity, cardiovascular diseases) and mental well-being."

The impact of diet on mental health

Depression affects 121 million people worldwide. This figure makes it one of the main global causes of disability-adjusted life year. Further still, in countries with low and medium income it is the leading cause.

However, little is known about the role that diet plays in developing depressive disorders. Previous studies suggest that certain nutrients have a preventative role. These include group B vitamins, omega-3 fatty acids and olive oil. Furthermore, a healthy diet such as that enjoyed in the Mediterranean has been linked to a lower risk of developing depression.

More information: Almudena Sánchez-Villegas, Estefanía Toledo, Jokin de Irala, Miguel Ruiz-Canela, Jorge Pla-Vidal and Miguel A Martínez-González. "Fast-food and commercial baked goods consumption and the risk of depression". Public Health Nutrition: page 1 of 9 doi:10.1017/S1368980011001856

Related Stories

Recommended for you

Adequate consumption of 'longevity' vitamins could prolong healthy aging, nutrition scientist says

October 16, 2018
A detailed new review of nutritional science argues that most American diets are deficient in a key class of vitamins and minerals that play previously unrecognized roles in promoting longevity and in staving off chronic ...

Many supplements contain unapproved, dangerous ingredients: study

October 13, 2018
(HealthDay)—U.S. health officials have issued more than 700 warnings during the last decade about the sale of dietary supplements that contain unapproved and potentially dangerous drug ingredients, new research reveals.

Age at which women experience their first period is linked to their sons' age at puberty

October 12, 2018
The age at which young women experience their first menstrual bleeding is linked to the age at which their sons start puberty, according to the largest study to investigate this association in both sons and daughters.

First ever meta-analysis on Indian lead exposure reveals link to devastating intellectual disability in children

October 12, 2018
New Macquarie University research has revealed the devastating disease burden associated with elevated blood lead levels in India. The results of the first ever meta-analysis of Indian blood lead levels found the burden of ...

The long-term effects of maternal high-fat diets

October 12, 2018
If a mother eats a high-fat diet, this can have a negative effect on the health of her offspring—right down to her great-grandchildren. This is the conclusion drawn by researchers at ETH Zurich from a study with mice.

Sit-stand office desks cut daily sitting time and appear to boost job performance

October 11, 2018
Sit-stand workstations that allow employees to stand, as well as sit, while working on a computer reduce daily sitting time and appear to have a positive impact on job performance and psychological health, finds a trial published ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.