1. Processed Meat
Processed meat includes all kinds of hot dogs, bacons, sausages and hams we eat normally. According to a new research the cases of bowel cancer is more common in people who are frequent processed meat consumers. The issue with processed meat is that it contains small amount of nitrosamines which can cause cancer if its quantity exceeds a certain limit in the human body. Processed meat also contain preservatives like sodium nitrates which is extremely harmful for the humans. It does not mean that you cannot eat processed meat but there is a certain limit per day for example an adult can eat up to 70 grams of processed meat per day if he or she wants to remain healthy.