Processed Meat and Cancer Risk: What You Require to Know
Consuming even a small amount of processed meat daily – around 50 grams, equivalent to one slice of bacon or ham – can increase the risk of colon cancer by approximately 18 percent, according to the International Agency for Research on Cancer (IARC), part of the World Health Organization (WHO). In the Netherlands, the Dutch Cancer Society (KWF) and the Nutrition Center recommend limiting red and processed meat intake as much as possible, and ideally avoiding meat products altogether. However, making informed choices can help reduce your risk.
Why is Processed Meat a Concern?
Processed meat, defined as any meat that has been salted, smoked, dried, or treated with preservatives, is classified by IARC as “carcinogenic to humans.” This classification stems from the combination of high saturated fat content, substantial salt levels, and the presence of nitrite salts (E249, E250). These compounds can create nitrosamines in the intestine, substances linked to the development of tumors in the large intestine.
Which Meats Pose the Greatest Risk?
The highest risk category includes salami, chorizo, coppa, bacon, diced bacon, pâté, and fatty terrines. These products are typically exceptionally salty, fatty, and heavily processed. Raw or smoked hams (Parma, Serrano, Bayonne) may appear less harmful, but often contain significant amounts of salt and nitrite, making them less suitable for regular consumption. KWF specifically recommends avoiding processed meats like ham, sausage, and salami.
Safer Choices and Portion Control
Leaner options, such as lean boiled ham without rind, preferably without nitrites and with a short ingredient list, or lean dried beef like bresaola, are slightly safer. It’s advisable to limit meat consumption to a maximum of one or two small portions per week (approximately 150 grams total), and to incorporate other protein sources like chicken, fish, eggs, legumes, or nuts into your diet. A practical approach is to roast a chicken or piece of beef weekly and use the cold slices as a “homemade meat” alternative on sandwiches.
A Quick Guide to Meat Choices
| Meat Product | Why it’s Unfavorable | Notes |
|---|---|---|
| Salami / Dry Sausage | Highly processed, high in salt, high in saturated fat, often contains nitrite preservatives | Better for occasional consumption |
| Chorizo | Very fatty and salty, smoked/salted, nitrite, considered processed red meat | Particularly problematic as a regular snack |
| Bacon / Spek / Bacon | High fat and salt content, often nitrite, highly heated (baking) → extra harmful substances | Daily breakfast with bacon is not recommended |
| Smoked Sausage / Frankfurter Sausage | Heavily processed, lots of salt and fat, nitrite, often long ingredient list | Better occasionally than weekly |
| Paté, Rillettes | Very fatty, often high in salt and additives, processed meat | Especially unfavorable with frequent consumption |
| Fatty Liver Sausage | High in fat, highly processed, often containing nitrite and other additives | Do not use as a standard sandwich filling |
| Raw/Smoked Ham | High salt content, mostly nitrite, processed red meat | Parma, Serrano, Bayonne: not an everyday choice |
| Industrial Hot Dogs | Heavily processed, lots of salt, fat, additives and nitrite | Grab a critical look, especially in children’s diets |
Recent Research and Collaboration
The Dutch Cancer Society (KWF) continues to fund research aimed at understanding and combating cancer. In December 2025, eleven research teams at the Netherlands Cancer Institute (NKI) began new projects with KWF funding, focusing on improved cancer understanding, detection, and personalized treatments.
KWF and the Netherlands Cancer Institute (NKI) renewed their collaboration agreement in November 2024, extending it for another five years. This partnership aims to enhance the impact of cancer research for patients in the Netherlands and globally, focusing on translating research into effective treatments, improving quality of life, and enhancing access to the best care. Successes include advancements in TIL-therapy for melanoma and the DRUP study investigating the repurposing of existing drugs for cancer treatment.
as of August 26, 2025, research from IARC explores the link between plant-based diets and the risk of multimorbidity of cancer and cardiometabolic diseases.