30/07/2025
The American Institute for Cancer Research guidelines tell us to “avoid processed meat” because “data do not show any level of intake that can confidently be shown not to be associated with risk.”
The International Agency for Research on Cancer (IARC) published its report in 2018 on processed meat and concluded that products including bacon, ham, hot dogs, lunch meat, and sausage are cancer-causing, classifying processed meat as a Group 1 carcinogen.
Critics questioned putting processed meat in the same carcinogenic classification as asbestos or to***co, but the classifications only relate to the strength of evidence that the agent causes cancer––not how much cancer it may cause. This does not mean that they are all equally dangerous.
So, how dangerous is processed meat? The relative risk of colore**al cancer is 18% for every 50 grams a day, which is about one hot dog, two breakfast links, or two slices of Canadian bacon or ham. A daily sandwich with one or two slices of baloney would increase colore**al cancer risk by 18%, and a half-pound pastrami on rye would bump it up more like 80%.
How does 18% increased cancer risk compare to other risky behaviors? Living with a smoker increases risk of lung cancer by 15%. So, breathing in secondhand smoke day in and day out increases lung cancer risk almost as much as eating a serving of processed meat day in and day out increases risk of colore**al cancer.
Colore**al cancer is the second leading cause of cancer death for men and women combined, after lung cancer. So, if you don’t smoke, colon and re**al cancer may be your greatest cancer nemesis. We can drop our risk of getting it by about a fifth with a single dietary tweak: Cut a serving of processed meat out of our daily diet.
Not just colon and re**al cancers either. If you look at the science since the IARC decision was published, processed meat may also increase the risk of prostate cancer, breast cancer, and pancreatic cancer.
Watch the video “How Much Cancer Does Processed Meat Cause?” at https://bit.ly/3MbdgAG
Cancer guidelines: https://see.nf/3ZtyVd1
PMID: 29949327, 27780763, 31198660, 28450127, 20669524