Obesity

American Obesity Association
http://www.obesity.org/

American Heart Association
http://www.americanheart.org/presenter.jhtml?identifier=4639

Mayo Clinic
http://www.mayoclinic.com/health/obesity/DS00314

Center for Disease Control
http://www.cdc.gov/nccdphp/dnpa/obesity/

US Food and Drug Administration
http://www.fda.gov/loseweight/