I will have to pick up that book and look it over. In talking about diet I was not only thinking of malnutrition but I was thinking of a study done On at risk youth (I forget the date and location I will have to look it up, but it was some where in the Midwest and was done fairly recently) where students where feed organic food and the improvements in there performance was remarkable different, and when the change was reversed the changes also went away. Any way I think that this is some thing that we can look at as we try to find success in are own life’s. The type of things we eat and what heath we keep are self’s in can effect are ability to perform mental at the top of our game. But Take it for what it is worth coming from a Guy who sells pizza for a living.