This classification does not mean that eating a small amount of processed meat is equivalent to smoking cigarettes.
Rather, it means that there is sufficient evidence that processed meat can cause cancer, particularly colorectal cancer, and that the risk generally increases with greater consumption.
How Might Processed Meat Increase Cancer Risk?
Several mechanisms have been proposed.
During processing and cooking, certain chemical compounds can form.
These may include:
- N-nitroso compounds
- Heterocyclic aromatic amines
- Polycyclic aromatic hydrocarbons
Some of these compounds can damage cells or DNA under certain conditions.
Preservatives such as nitrates and nitrites can also contribute to the formation of certain compounds in the body.
The exact biological mechanisms remain an area of scientific research.
Does Eating Processed Meat Mean You Will Get Cancer?
No.
This is an important distinction.
A higher risk does not mean that every person who eats processed meat will develop cancer.
Cancer is influenced by many factors, including:
- Genetics
- Age
- Physical activity
- Body weight
- Smoking
- Alcohol consumption
- Overall diet
- Environmental exposures
- Family history
Processed meat is one factor among many.
The Amount Matters
Health risks generally depend on how much processed meat a person consumes.
Eating processed meat occasionally is very different from eating it every day in large quantities.
