01/16/2026
The World Health Organization classifies processed meats in the same category as ci******es and asbestos. The International Agency for Research on Cancer (IARC) has placed processed meats—including favorites like ham, bacon, and hot dogs—in its highest classification for carcinogenicity.
This designation means that the scientific community has reached a definitive consensus: these foods are directly linked to the development of cancer, specifically colorectal cancer.
While this does not mean that eating a slice of ham is as dangerous as smoking a cigarette, it signifies that the evidence linking processed meats to cancer is robust. The risk stems largely from the processing itself: methods such as curing, salting, and smoking create chemical compounds like nitrosamines that can damage DNA over time.
Beyond preservatives like nitrates and nitrites, high-heat cooking methods such as grilling or frying further increase the presence of carcinogens like heterocyclic amines.
Health experts recommend significantly limiting or entirely avoiding ultra-processed meats, and instead choosing safer protein sources like fish, beans, or plant-based alternatives. For those who still choose to consume red meat, reducing portion sizes and frequency is an important step in lowering long-term health risks.
Making these dietary adjustments can have a profound impact on preventing cellular damage and promoting overall longevity.
Source: International Agency for Research on Cancer. IARC Monographs evaluate consumption of red meat and processed meat. World Health Organization.