NEW YORK — The New York City Department of Health and Mental Hygiene has launched a new calorie education campaign designed to help consumers see how quickly fast-food calories add up. The campaign, which features five advertisements appearing in 1,000 New York City subway cars during the next three months, also aims to show how deceptive appearances may be.

"Many people end up overweight just by going with the flow," said Cathy Nonas, director of the D.O.H.’s Physical Activity and Nutrition program. "Now that this information is available in chain restaurants, it’s easy to make healthier choices. Once you set a daily calorie budget, there are lots of ways to live within in."

The New York City Board of Health earlier this year passed a regulation requiring fast-food chains to post calorie information on their menus and menu boards.