The truly shocking news is that the Energyfirst Review healthiest breakfast cereals bought in health food stores are processed foods and actually more toxic than the supermarket brands, because they are higher in protein. It is the proteins that are so terribly denatured by the extrusion process!
The studies mentioned above were never publicized. The cereal industry is highly profitable and the manufacturers are a powerful (and ruthless) lot. I encourage you to check out the well-researched reference materials by Sally Fallon, Mary Enig and Paul Stitt, with more dirty little food processing secrets including the dangers of packaged orange juice, low fat milk, margarine, and more.
If you are looking for good food for brain health, the answer may lie in something that you have probably heard before but just thought it was a myth or an old wives tale, and that is that fish is brain food. Although this may seem strange it is in fact true, but not of all fish it specifically has to be oily fish along the lines of tuna, hoki or salmon. The reason that these fish are food for brain health is down to the oils and fats contained within them.