Great places to look for more information regarding:

Studies about the benefits of exercise:

http://www.fitnet.ca/download/July05/Health.pdf

Great tips on many health related issues!

http://www.acefitness.org/fitfacts/fitfacts_list.aspx#4

Dietary Guidelines for Americans:

http://www.health.gov/dietaryguidelines/dga2005/document/

American Food Labeling and Packaging:

http://www.fsis.usda.gov/about/labeling_&_consumer_protection/index.asp

Dietary Guidelines for Canadians:

http://www.hc-sc.gc.ca/fn-an/food-guide-aliment/index_e.html