#28 Processed Meat Products
Most processed meats like sausages, bacon, and lunch meats contain nitrites or nitrates. When heated up, these chemicals convert into nitrosamines which can cause colorectal and other cancers.
Don’t think eating them cold is safe either; your stomach’s digestive juices can also create nitrosamines. So it’s better to look for processed meats that are nitrate and nitrite-free altogether.