What is the possible reason that some foods promote the brain performance?

Why certain food choices might help the brain function better remains unclear. Perhaps these regimens’ known cardiovascular benefits, which promote a good flow of blood and oxygen to the brain, are key. But other factors may be at work. Of course, questions about when these dietary changes need to happen or how diet stacks up against other factors, such as physical activity, sleep patterns and genetics also remain unanswered.

There was a spate of announcements from companies saying they were removing artificial colors and flavors from their foods. While that may make some foods more appealing to some people, the changes don’t, de facto, mean the food is any more nutritious. It’s not just a question of what companies take out but what they put in. All good diets emphasize foods with minimal processing and an emphasis on vegetables, fruits, whole grains, beans, nuts and seeds.