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Additives

Potassium Nitrate (E252): What It Is and Is It Safe?

Moderate Preservative · Curing agent

Converts to nitrite in the body. Same long-term cancer concerns associated with nitrite/nitrosamine formation as E250 and E251.

Category
Preservative — Curing agent
Typically used in
Hard cheese, cured meats
Regulatory status
Approved EU/USA/UK. Similar concerns to E250.
Concerns flagged
Carcinogenicity concernCardiovascular concernEndocrine disruption

Scrannr flags Potassium Nitrate automatically when you scan a barcode.

Sources

Where this comes from

  1. EFSA (2017) — Re‐evaluation of sodium nitrate -E 251- and potassium nitrate -E 252- as food additives https://efsa.onlinelibrary.wiley.com/doi/epdf/10.2903/j.efsa.2017.4787
  2. IARC (2010) — IARC Monographs Vol. 94 – Ingested Nitrate and Nitrite as food additives (Group 2A) https://publications.iarc.who.int/Book-And-Report-Series/Iarc-Monographs-On-The-Identification-Of-Carcinogenic-Hazards-To-Humans/Ingested-Nitrate-And-Nitrite-And-Cyanobacterial-Peptide-Toxins-2010
Products

Products containing Potassium Nitrate

We're building product pages that show real UK products containing Potassium Nitrate, using Open Food Facts data. They'll appear here soon — in the meantime, scan any barcode with the Scrannr app to check for it instantly.

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