Phosphoric Acid
Phosphoric Acid carries a safety score of 4/5 and appears in 4,370 indexed US food products. CSPI rates it “Cut Back.”
4/5 from FDA SAFFA + CSPI Chemical Cuisine
How common is vs other flagged additives?
Number of indexed products containing each of the most common flagged additives — Phosphoric Acid highlighted.
Indexed products containing each flagged additive. Source: Open Food Facts ingredient lists × FDA SAFFA × CSPI Chemical Cuisine.
Function
ANTIMICROBIAL AGENT, FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT, FUMIGANT, MALTING OR FERMENTING AID, NON-NUTRITIVE SWEETENER, PH CONTROL AGENT, SEQUESTRANT
Safety Assessment
Phosphoric Acid is generally considered safe for consumption based on available regulatory and scientific data. It has a safety score of 4/5, indicating broad acceptance by food safety authorities. CSPI recommends limiting consumption of this ingredient.
What the Data Says About
Phosphoric Acid currently appears in 4,370 products across the OpenFoodFacts catalog we index, which gives a concrete measure of its footprint on US grocery shelves. Our internal safety score of 4/5 synthesizes FDA Substances Added to Food (SAFFA) regulatory status — currently "GRAS" — with the Center for Science in the Public Interest (CSPI) Chemical Cuisine classification of "Cut Back." These two frameworks capture different questions: regulators ask whether exposure at typical intake is acceptable, while consumer-advocacy groups examine cumulative dietary load and vulnerable-population risk.
In food manufacturing, Phosphoric Acid functions as a antimicrobial agent, flavor enhancer, flavoring agent or adjuvant, fumigant, malting or fermenting aid, non-nutritive sweetener, ph control agent, sequestrant. 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 Phosphoric Acid 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 | GRAS | 2024 |
| CSPI Chemical Cuisine | Cut Back | 2024 |
| PlainFoodSafe Score | 4/5 | 2026 |
| Product footprint | 4,370 products | OpenFoodFacts |
FDA SAFFA database, CSPI Chemical Cuisine ratings, OpenFoodFacts product index. See methodology.
Products Containing
Showing 50 of 4,370 products
Frequently Asked Questions
Is Phosphoric Acid safe to eat? ▼
Phosphoric Acid has a safety score of 4/5. The Center for Science in the Public Interest (CSPI) rates it as "Cut Back." FDA status: GRAS. Always check with a healthcare provider if you have specific dietary concerns.
What products contain Phosphoric Acid? ▼
Phosphoric Acid is found in 4,370 products in our database, spanning various food categories and brands.
What does Phosphoric Acid do in food? ▼
Phosphoric Acid is used as a antimicrobial agent, flavor enhancer, flavoring agent or adjuvant, fumigant, malting or fermenting aid, non-nutritive sweetener, ph control agent, sequestrant in food products.
Where does this ingredient safety data come from? ▼
Safety data comes from the FDA's SAFFA (Substances Added to Food) database, CSPI (Center for Science in the Public Interest) ratings, and the OpenFoodFacts product database. Product counts reflect items cataloged in OpenFoodFacts.