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Potassium Nitrate
Potassium nitrate is an inorganic compound used primarily as a food preservative and curing agent, especially in processed meats.
Mineral or nutrientUpdated Feb 14, 2026
Health score-3.0
-5Poor5
Water guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Food and supplement guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Risks
Potential formation of carcinogenic nitrosamines under certain conditions, ingestion toxicity at high levels, regulatory restrictions on maximum allowable concentrations
Benefits
Preservative extending shelf life, inhibits growth of spoilage bacteria
References
Waters containing Potassium Nitrate
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