Food Additive · EU 366

Potassium Fumarate

FDA status: Approved. EU: Approved. No U.S. state has enacted a specific ban yet.

Low Risk
Score 4 of 5
Potassium Fumarate: 4/5 (Low Risk)

According to the U.S. Food and Drug Administration, Potassium Fumarate is FDA-approved, and no U.S. state has moved to restrict it independently of federal policy. Its composite safety score is 4 out of 5 (Low Risk), and the European Union separately classifies it as approved.

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The verdict

Potassium Fumarate is FDA-approved, and no U.S. state has moved to restrict it.

4/5
Low Risk
Approved
FDA status
Approved
EU status
0
state regulations

Potassium Fumarate (366) is a food additive additive holding a composite safety score of 4 out of 5 (Low Risk). According to the U.S. Food and Drug Administration's Substances Added to Food inventory, it is currently classified as Approved, while the European Union lists it as Approved. It is most commonly used as Various processed foods.

No U.S. state has enacted specific legislation targeting Potassium Fumarate to date, keeping federal FDA classification as the operative standard. State-level food safety legislation remains active nationally, and that picture may shift as new bills advance.

No major peer-reviewed health concerns are presently documented for Potassium Fumarate at consumer exposure levels, though scientific review is ongoing and positions can shift. All figures above draw on FDA SAFFA inventory records, EU food additive regulation (EC) No 1333/2008, EFSA scientific opinions where published, and legislative records from individual U.S. states.

Regulatory Snapshot

Property Value Source
FDA Status Approved FDA SAFFA
EU Status Approved EC 1333/2008
E-Number 366 EU additive register
CAS Number - CAS Registry
Category Food Additive FDA functional class
Composite Safety Score 4 / 5 (Low Risk) PlainIngredients methodology
EFSA ADI Not established EFSA scientific opinion
U.S. State Actions 0 states State legislative records
Tracked Products Not yet tracked Open Food Facts (US)

Values reflect official agency classifications as published by the U.S. Food and Drug Administration and the European Union's regulatory framework. See our methodology for scoring details.

FDA Status

Approved

EU Status

Approved

366

U.S. State Regulations

0 states

None enacted

Safety Assessment

Potassium Fumarate's 4/5 (Low Risk) score reflects where this specific ingredient lands on that scale. The FDA has approved Potassium Fumarate for use in food products under specified conditions.

How Potassium Fumarate compares

Where a safety score of 4/5 falls among all 4,509 scored ingredients tracked on PlainIngredients.

Ingredients by safety score (Potassium Fumarate highlighted)

1/541 ingredients2/543 ingredients3/525 ingredients4/54,369 ingredients5/531 ingredients

4,369 of 4,509 scored ingredients (96.9%) share a safety score of 4/5.

What is Potassium Fumarate?

Potassium Fumarate is a food additive (366) classified as food additive.

Common Uses

Various processed foods

Frequently Asked Questions

Is Potassium Fumarate safe to consume?

Potassium Fumarate has a safety score of 4/5 (Low Risk). It is approved by the FDA for use in food. As with all food additives, moderation is advisable.

Data Sources
  • FDA Substances Added to Food (SAFFA) Inventory
  • EU Food Additive Regulations (EC) No 1333/2008
  • State food safety legislation and bill records

What to do about Potassium Fumarate

Use the regulatory picture, not a single score, to decide.

  • Check the FDA status (Approved) and EU status (Approved) before assuming it is risk-free. How we score
  • Compare it against the most-restricted additives in the U.S. supply. View rankings
  • Scan a whole ingredient label at once to flag the concerning entries. Label checker

Safety scores summarise regulatory status and published concerns; they are not medical or dietary advice.

Every figure on PlainIngredients is rendered directly from FDA, EU, EFSA and U.S. state regulatory records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.