Digestoa
Additive · Preservative

Sodium nitrite (E250)

Sodium nitrite (E250) is a preservative that Digestoa flags as high risk. Common concerns include nitrosamine formation.

Digestoa riskHigh risk
TypePreservative
Found inBacon, ham, hot dogs, salami, pepperoni and most cured and deli meats.
ConcernsNitrosamine formation · Linked to colorectal cancer (processed meat)

What is Sodium nitrite?

Sodium nitrite is a curing salt and preservative that keeps processed meats pink and prevents botulism. Under high heat it can form nitrosamines, which are linked to colorectal cancer.

Is Sodium nitrite bad for you?

Digestoa flags Sodium 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.

What foods contain Sodium nitrite?

Bacon, ham, hot dogs, salami, pepperoni and most cured and deli meats..

Digestoa's take

You don't need to panic over a single product that contains Sodium nitrite. But it's a useful flag: when you see E250 on a label it often signals a more processed product, and there's usually a cleaner alternative.

Safer swaps

Choose meats labelled 'uncured' or 'no added nitrites', or fresh unprocessed cuts.

Frequently asked questions

Is E250 the same as Sodium nitrite?
Yes — E250 is the international additive (E-number) code for Sodium nitrite.
Is Sodium nitrite bad for you?
Digestoa flags Sodium nitrite (E250) as high risk. It's permitted in food, but it's associated with concerns such as nitrosamine formation.
What are the side effects of Sodium nitrite?
Reported concerns include: Nitrosamine formation; Linked to colorectal cancer (processed meat).
What foods contain Sodium nitrite?
Bacon, ham, hot dogs, salami, pepperoni and most cured and deli meats..
How can I avoid Sodium nitrite?
Check the ingredients list for "Sodium nitrite" or "E250", or scan the product with Digestoa to see if it's present before you buy.

Related preservative additives

Potassium nitrite (E249)Sodium nitrate (E251)Potassium nitrate (E252)Benzoic acid (E210)Sodium benzoate (E211)Potassium benzoate (E212)

Risk ratings reflect Digestoa's editorial assessment synthesising EFSA/IARC opinions and peer-reviewed research. Informational only — not medical advice.