Eating processed meats like sausage and bacon, and red meats like steak and ground beef may increase your risk for colorectal cancer and possibly a few other cancers, according to the World Health Organization (WHO).
In October 2015, the WHO reported that it reviewed more than 800 studies and found that eating more than 100 grams of red meat per day—equivalent to a steak about the size of a deck of cards—was associated with a 17 percent higher risk of colorectal cancer.
The report also found that people who ate more than 50 grams of processed meat per day—roughly two pieces of bacon—increased their colorectal cancer risk by 18 percent.
More recently, an International Journal of Cancer analysis released in October 2018 suggested that high levels of processed meat consumption are associated with a 9 percent higher risk of breast cancer. Other research has revealed links between eating red meat and increased risks of pancreatic, advanced prostate and stomach cancers, says Ashley Jeter, MD, hematologist, and oncologist at Charleston Cancer Center in South Carolina. WHO experts said that more research is needed to fully understand these associations.
The link to the World Health Organization article is below.