Restaurant chains in New York will be forced to put calorie counts on their menus as part of a healthier eating campaign.
The city's health board hopes the fat-filled truth about some dishes will shock diners into choosing alternatives.
The new rule comes into effect in April and applies to any chain that operates at least 15 separate outlets. Major fast-food chains make up about 10% of the city's restaurants.
Several chains, such as McDonald's and Burger King, have the information available, but do not list it on the menu boards that customers read before ordering.
City officials hope the rule will curb obesity by making people aware of the thousands of calories that can be packed into some of the meals. Health Commissioner Thomas Frieden said he hoped the chains would also respond by offering healthier options.