Back in December 2009 I wrote a blog post entitled "New research shows diet's importance for preventing depression" where I commented "You know how it is - no buses in sight, then two come along at once. It's been a bit similar for good research on diet and depression. There have been plenty of studies on individual components of diet and mood (e.g. fish, folate, other B vitamins), but very little on the possible psychological effects of diet as a whole." I then noted that in October of 2009, Sanchez-Villegas & colleagues had published "Association of the Mediterranean Dietary Pattern With the Incidence of Depression: The Seguimiento Universidad de Navarra/University of Navarra Follow-up (SUN) Cohort." As you can see from the slide below, they showed startling reductions in the risk of developing depression for people who eat healthily compared with those who don't ... and as a bonus, there are great mortality risk improvements as well.