Specimen No. 0187
AvoidSyntheticfood nitrates and nitrites
Potassium Nitrite
E249
Master DB rating: Avoid. Listed for: Cured/smoked meats
medium confidence
Researched July 7, 2026Specimen 0187Potassium Nitrite
Concerns
- Converts to nitrosamines via the same metabolic pathway as sodium nitrite
- WHO/IARC's 2015 evaluation classified processed meat as a Group 1 carcinogen for colorectal cancer specifically via this nitrite-to-nitrosamine pathway
Regulatory flags
- ⚑IARC Class: NL (processed meat category = Gr1 via nitrosamines)
- ⚑EDC Status: None
- ⚑Regulatory: US: USDA limits (9 CFR 424.22, 148 ppm ingoing for bacon); EU: limits
- ⚑Evidence Grade: A
Commonly found in
Cured/smoked meats
Sources & references
Last researched: July 7, 2026
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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