The FDA hasn't approved a new weight-loss drug since 1999. In the meantime, Americans' waistlines have continued to grow. M. Spencer Green/AP hide caption

itoggle caption M. Spencer Green/AP

A tax proposal on the table in Massachusetts could discourage sugar consumption a bit by making sugary foods more expensive. Umberto Salvagnin/Flickr hide caption

itoggle caption Umberto Salvagnin/Flickr

Americans eat about 31 pounds of cheese per person each year, according to the U.S. Department of Agriculture. iStockphoto.com hide caption

itoggle caption iStockphoto.com

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

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

Jenny Craig brand ambassador and singer Mariah Carey (left) poses with Dana Fiser, CEO of Jenny Craig, at a press conference in New York City in November. Cindy Ord/Getty Images hide caption

itoggle caption Cindy Ord/Getty Images