The Lab
Specimen No. 0064
AvoidSyntheticfood additivepreservative

Sodium Nitrite / Sodium Nitrate

sodium nitrite · sodium nitrate · e250

Curing agents used in processed meats. Under high heat or in acidic stomach environments, nitrites convert to nitrosamines — IARC Group 2A probable carcinogens.

high confidence
Researched April 18, 2026

Concerns

  • Conversion to N-nitrosamines (IARC Group 2A) under heat or stomach acid
  • IARC classified processed meat as Group 1 carcinogen, partly attributable to nitrites
  • Methemoglobinemia risk in infants at high doses
  • WHO recommends limiting processed meat consumption

Regulatory flags

  • IARC Group 2A: processed meat containing nitrites is a probable carcinogen
  • WHO advises limiting processed meat consumption

Commonly found in

BaconHot dogsDeli meatSausageCured fishSalami

Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.

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LabelCleared verdict badge: Sodium Nitrite / Sodium Nitrate — Avoid
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