Potassium nitrite (E249)
Potassium nitrite (E249) is a preservative that Digestoa flags as high risk. Common concerns include nitrosamine formation.
What is Potassium nitrite?
Potassium nitrite (E249) is a preservative — used to extend shelf life and stop spoilage.
Is Potassium nitrite bad for you?
Digestoa flags Potassium nitrite as high risk. Regulators permit it, but safety reviews and studies have raised concerns including nitrosamine formation, linked to colorectal cancer (processed meat). How often you eat it matters more than a single exposure.
- Nitrosamine formation
- Linked to colorectal cancer (processed meat)
What foods contain Potassium nitrite?
Packaged meats, baked goods, soft drinks and other long-shelf-life foods.
Digestoa's take
You don't need to panic over a single product that contains Potassium nitrite. But it's a useful flag: when you see E249 on a label it often signals a more processed product, and there's usually a cleaner alternative.
Safer swaps
Choose fresher items with shorter shelf lives, or naturally preserved products.
Frequently asked questions
Is E249 the same as Potassium nitrite?
Is Potassium nitrite bad for you?
What are the side effects of Potassium nitrite?
What foods contain Potassium nitrite?
How can I avoid Potassium nitrite?
Related preservative additives
Risk ratings reflect Digestoa's editorial assessment synthesising EFSA/IARC opinions and peer-reviewed research. Informational only — not medical advice.