The Physicians Committee for Responsible Medicine erected this billboard in Chicago to help people in the hot-dog capital reduce their colorectal cancer risk-no small task since 39 percent of Americans don't even know what the colon is. Seriously. Although I'm guessing a much greater percentage don't know what's in a hot dog.

Hot Dogs Cause Butt Cancer?

Besides mechanically separated meat, bones, connective tissue, and the stuff they put in instant hand warmers, hot dogs and other processed meats are chockfull of cancer-causing nitrates, which greatly increase the risk of deadly colorectal cancer.

Given the choice, I think I'd rather put down the bun and save my buns.