This website includes a lot of information about hot topics in food and nutrition, a tip of the day, and reviews by registered dietitians of popular dieting books.
This site includes up to date information about international outbreaks, health precautions to take when traveling, pre-travel vaccinations, how to find health care abroad, and destination-specific information.
This site from the World Health Organization has disease distribution maps, updates for travelers, and offers for purchase some books including the International Travel and Health Book and the WHO Guide on Safe Food for Travelers.