From the article:
The World Cancer Research Fund (WCRF) has just completed a detailed review of more than 7,000 clinical studies covering links between diet and cancer. Its conclusion is rocking the health world with startling bluntness: Processed meats are too dangerous for human consumption. Consumers should stop buying and eating all processed meat products for the rest of their lives.
Processed meats include bacon, sausage, hot dogs, sandwich meat, packaged ham, pepperoni, salami and virtually all red meat used in frozen prepared meals. They are usually manufactured with a carcinogenic ingredient known as sodium nitrite. This is used as a color fixer by meat companies to turn packaged meats a bright red color so they look fresh. Unfortunately, sodium nitrite also results in the formation of cancer-causing nitrosamines in the human body. And this leads to a sharp increase in cancer risk for those who eat them.