Foods such as processed meat that is preserved in certain ways and meat contaminated with synthetic hormones are known to cause cancer, states WebMD and Newsmax Health. Additionally, farm-raised salmon that is contaminated with organochlorines is known to cause cancer, according to the National Institutes of Health.
Eating meat that is preserved by salting, smoking, curing or by adding chemical preservatives is associated with an increased risk of colon cancer. Researchers suspect that when people ingest preservatives, cancer-causing compounds form in the body, explains WebMD. Meat products, such as chicken, that contain synthetic hormones are also associated with cancers in the breast and prostate, reports Newsmax Health. Additionally, farm-raised salmon contains more organochlorine contaminants than wild salmon. Organochlorine contaminants increase the risk of colorectal cancer, according to the National Institutes of Health.