Nutritional psychiatry There is truth in the saying, “you are what you eat.” We may often feel better when we eat better, a healthy diet may have an impact on mental health. The impact that food has on mood and other aspects of mental illness is topic of this symposium. Nutritional psychiatry is developing into a real opportunity for clinical intervention for patients who suffer from brain diseases as depression and anxiety. In this symposium novel approaches towards unraveling how food impacts on brain health are presented as an introduction to a discussion where the focus of future research in nutritional psychiatry should be.