Eating just one sausage or three slices of bacon a day, about 1.8 ounces, may increase the risk of bowel cancer by a fifth, a health organization has warned.
Scientists say the safest amount of processed meat, which also includes lunch meat, to eat is none at all, it is reported by the U.K.'s Daily Record.
Experts at the charity World Cancer Research Fund said more is needed to raise awareness of the dangers, according to the report.
Professor Martin Wiseman, medical and scientific adviser for the WCRF, said there was convincing evidence of a link between processed meats and cancer.
Processed meat is any meat that is preserved by smoking, curing, salting or additives.