Sen. Charles Schumer Sundaycalled on the FDA to ban a chemical that's added into the bread at most fast-food chains.

"In a day where cancer rates are rising ... you have to be careful," he said outside a McDonald's yesterday on the West Side.

Many restaurants, grocery stores and fast-food chains, like McDonald's, use azodicarbonamide to condition dough and make the bread last longer, but studies have found that it can create semicarbazide, a carcinogen, when cooked.

"The burger chain is one of many restaurants, like Arby's, Burger King and Wendy's, that use the chemical," Schumer said.

Last week, Subway announced it would stop using the chemical in its stores.

McDonald's didn't return messages for comment.

Schumer is less worried about the use of the chemical in other products such as shoe soles and yoga mats.

"It's pretty infrequent that we'd eat a shoe or yoga mat," he said.

Australia and the European Union have already banned azodicarbonamide from their food and the U.S. should follow suit, Schumer said.

The FDA could easily be rid of the chemical by attaching it to the Delaney Clause, which prohibits the agency from approving anything carcinogenic for consumption.

"We need to do everything we can to remove carcinogen from the food pyramid," Schumer said.