Red and processed meat.! http://www.webmd.com/food-recipes/news/20151026/meat-cancer-risk#1Each daily 50-gram portion of processed meats -- about the size of an average hot dog -- increases the risk of colorectal cancers by 18%, the report says. Each daily, 100-gram portion of red meat -- about one-quarter of a pound -- raises colorectal cancer risk by 17%.In absolute terms, the increased risk is pretty small. For example, the risk that a man will get colorectal cancer during the course of his lifetime is about 4.8%, on average -- or said differently, about 1 in 21 men will develop it in his lifetime. A 17% increase in that risk bumps it up to 5.6%, or changes that risk to about 1 in 18 men.By comparison, a 2005 study determined that smoking a single daily cigarette could increase a person’s risk of lung cancer by about 200% to 400%.