Chefs Jose Andres and Alice Waters pose along side her newly installed portrait, by photographer Dave Woody, at the National Portrait Gallery in Washington, on Jan. 20, 2012. John Rose/NPR hide caption

itoggle caption John Rose/NPR

The new nutrition standards will replace school lunch dishes like pizza sticks with salad. iStockphoto.com hide caption

itoggle caption iStockphoto.com

People stroll down a street in Montpelier, Vt., last summer. In 1995, 13.4 percent of Vermonters were considered obese. The figure climbed to 23.5 percent in 2011. The latest national data suggest the obesity epidemic has plateaued, however. Toby Talbot/AP hide caption

itoggle caption Toby Talbot/AP

Researchers say that if the price of soda gets higher, people will drink less of it, which will lead to fewer deaths. Joel Saget/AFP/Getty Images hide caption

itoggle caption Joel Saget/AFP/Getty Images

Eliminating junk food from a child's diet is usually not enough to effectively treat attention deficit disorders, a paper shows. Tarah Dawdy via Flickr hide caption

itoggle caption Tarah Dawdy via Flickr