Eating as little as two slices of bacon per day increases your risk of colorectal cancer by 18%, according to the World Health Organization. If your response to that news is "How bad is colorectal cancer anyway?" then you might have a problem.
Processed meats are meats that have been smoked or cured with salt and other preservatives, including "bacon, sausages, hot dogs, salami, corned beef, beef jerky and ham as well as canned meat and meat-based sauces." But researchers say pork, beef, and lamb that are unprocessed still "probably" cause cancer, which caused a stampede of people signing up to be part of the study that finds out for sure.
One possible upside to finding out bacon is scary: new Halloween costume idea?