An extensive list of links from the MedlinePlus site containing news, diagrams, pictures, videos and tutorials on nutrition, exercise and related issues.
HealthFinder has resources on a wide range of health topics selected from over 1,600 government and non-profit organizations to bring you reliable health information.
U.S. Department of Health and Human Services site provides science-based guidance to help Americans aged 6 and older improve their health through appropriate physical activity.