Brain Food for Kids
Here are some websites that are useful
http://www.askdrsears.com/html/4/T040400.asp
http://www.thedietchannel.com/Brain-Food-For-Kids-Feed-Your-Children-So-They-Excel-At-School.html
How the Brain works:
http://faculty.washington.edu/chudler/nutr.html
Information in Spanish
http://www.asesorianutricional.com.ar/alimentos-mente.htm
http://www.producto-light.com.ve/nutricion/dietacerebro.html
Sobre la comida mala para el cerebro:
http://www.farsalia.com/miscel/alimentos.html