Bromated flour, which makes breads and crusts stretchy and springy (and cheap), is among the carcinogens forbidden in pending state legislation.

Gwyneth Paltrow’s healthy-eating enterprise is just one of several recent Los Angeles exports to a rival city with its own ideas about what’s good.

In the industry where René Redzepi reigned, fellow chefs are debating how, and how much, restaurant kitchens can change.