anon answered on 28 Apr 2015:
@Paul Howard-Jones provided what I believe is the best study to date on nutrition and cognitive performance. There is much more evidence that suggest malnutrition has negative impacts on cognitive performance. Aside from protein, literature suggests that fruits and vegetables have a lot of the vital nutrients needed for brain function. We are about to start an intervention looking at fruit and vegetable consumption (as well as fitness) in a 6 week period looking at improvements in cognitive performance. I’ll make sure to share results when they become available.