Potassium Nitrate
Potassium Nitrate carries a safety score of 3/5 and appears in 92 indexed US food products.
3/5 from FDA SAFFA + CSPI Chemical Cuisine
How common is Potassium Nitrate vs other flagged additives?
Number of indexed products containing each of the most common flagged additives - Potassium Nitrate highlighted.
Function
ANTIMICROBIAL AGENT, COLOR OR COLORING ADJUNCT, FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT
Safety Assessment
Potassium Nitrate has a moderate safety profile (3/5). While approved for use, some studies or consumer advocacy groups have raised questions about certain aspects of this ingredient. Consumers who prefer caution may wish to limit intake.
What the Data Says About Potassium Nitrate
Potassium Nitrate currently appears in 92 products across the OpenFoodFacts catalog we index, which gives a concrete measure of its footprint on US grocery shelves. Our internal safety score of 3/5 synthesizes FDA Substances Added to Food (SAFFA) regulatory status - currently "Prior Sanctioned" - with the Center for Science in the Public Interest (CSPI) Chemical Cuisine classification. Regulators ask whether exposure at typical intake is acceptable, while consumer-advocacy groups like CSPI weigh cumulative dietary load and vulnerable-population risk -- two related but distinct questions.
In food manufacturing, Potassium Nitrate functions as a antimicrobial agent, color or coloring adjunct, flavor enhancer, flavoring agent or adjuvant. That technical role explains why it recurs across many product categories, formulators select specific additives for stability, shelf life, color, or texture performance, and substitution is rarely a one-for-one swap when regulations or consumer preferences shift. Inspection and outbreak data often trace back to breakdown in the control of exactly these kinds of functional ingredients, either through contaminated batches, undisclosed substitutions, or labeling errors that trigger FDA-initiated recalls.
No specific concern flags are attached to Potassium Nitrate in our current data snapshot beyond the regulatory and CSPI classifications above. That does not rule out individual sensitivity reactions, and anyone managing allergies, elimination diets, or chronic conditions should verify with a qualified healthcare professional before relying on population-level ratings.
Safety Profile at a Glance
| Source | Classification | Year |
|---|---|---|
| FDA SAFFA | Prior Sanctioned | 2024 |
| CSPI Chemical Cuisine | Not rated | 2024 |
| PlainFoodSafe Score | 3/5 | 2026 |
| Product footprint | 92 products | OpenFoodFacts |
FDA SAFFA database, CSPI Chemical Cuisine ratings, OpenFoodFacts product index. See methodology.
Products Containing Potassium Nitrate
A sample of 16 of the 92 indexed products containing Potassium Nitrate, with each product's overall safety score.
Frequently Asked Questions
Is Potassium Nitrate safe to eat? ▼
Potassium Nitrate has a safety score of 3/5. FDA status: Prior Sanctioned. Always check with a healthcare provider if you have specific dietary concerns.
What products contain Potassium Nitrate? ▼
Potassium Nitrate is found in 92 products in our database, spanning various food categories and brands.
What does Potassium Nitrate do in food? ▼
Potassium Nitrate is used as a antimicrobial agent, color or coloring adjunct, flavor enhancer, flavoring agent or adjuvant in food products.
Citation notes
Regulatory status from FDA SAFFA; safety ratings from CSPI Chemical Cuisine; product presence from Open Food Facts. See our methodology. Retrieved and formatted by PlainFoodSafe Editorial.Every figure on PlainFoodSafe is rendered directly from OpenFoodFacts and FDA data, no number is typed in by an editor. Ingredient figures are computed directly from OpenFoodFacts, FDA SAFFA, and CSPI Chemical Cuisine data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.