Hot dogs on Independence Day or ham and Swiss sandwich are about at least somewhat American. However, there is a reason why they made this list of foods you should never eat again. Processed food may taste pretty good, but the reverse is the case for your health. In actuality, a research was conducted earlier this year and the findings connected a high or increased consumption of processed meats with a bigger risk of colon cancer. Sadly, not only hams and hot dogs are included, but also sausages, deli meats, bacon and several other processed products.