Check these out for a quick read.

http://www.oldwayspt.org/med_pyramid.html

http://health.usnews.com/articles/health/diet-fitness/2009/08/24/foods-surprisingly-high-in-added-sugar.html

http://health.usnews.com/articles/health/living-well-usn/2008/04/07/diets-that-promote-health-and-always-have.html

http://health.usnews.com/articles/health/healthday/2009/08/25/as-waistlines-widen-brains-shrink.html