Popcorn now comes candied in ruby red, indigo blue and more. And don't be surprised by the popcorn buffet at the next wedding you attend. Bradley P. Johnson/via Flickr hide caption

itoggle caption Bradley P. Johnson/via Flickr

Calorie counts like the one on this McDonald's drive-thru in New York are intended to help people make healthier choices. But researchers say they're often too confusing. Ed Ou/AP hide caption

itoggle caption Ed Ou/AP

A vending cart with breakfast foods in New York City. In 2008, the city expanded its trans-fat ban from spreads and frying oils to baked goods, frozen foods, and doughnuts. Spencer Platt/Getty Images hide caption

itoggle caption Spencer Platt/Getty Images

A shopper walks down an aisle in a newly opened Wal-Mart Neighborhood Market in Chicago. Jim Young/Reuters /Landov hide caption

itoggle caption Jim Young/Reuters /Landov

The latest subject in standardized tests for kids: cholesterol. iStockphoto.com hide caption

itoggle caption iStockphoto.com

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

The S&W Seed Co., in Five Points, Calif., will grow these seedlings of zero-calorie stevia in the fields of California's Central Valley. Dan Charles/NPR hide caption

itoggle caption Dan Charles/NPR