Preservative CAS: 7681-57-4 EU: E223

Sodium Metabisulfite

Sodium Metabisulfite (E223), CAS 7681-57-4, is a preservative additive holding a composite safety score of 3 out of 5 (Mixed Evidence). The U.S. Food and Drug Administration currently classifies it as GRAS, while the European Union lists it as Approved. This ingredient appears in approximately 276 tracked food products across our database. It is most commonly used as Wine, dried fruits, shrimp.

No U.S. state has enacted specific legislation targeting Sodium Metabisulfite 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.

Peer-reviewed research has flagged 1 distinct area of health concern for Sodium Metabisulfite, which factors directly into the assigned safety score. The European Food Safety Authority has published an evaluation dated 2016-04-14, with an Acceptable Daily Intake (ADI) of 0.7. EFSA has noted an overexposure risk classification of "high" for typical consumption patterns. 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 GRAS FDA SAFFA
EU Status Approved EC 1333/2008
E-Number E223 EU additive register
CAS Number 7681-57-4 CAS Registry
Category Preservative FDA functional class
Composite Safety Score 3 / 5 (Mixed Evidence) PlainIngredients methodology
EFSA ADI 0.7 EFSA scientific opinion
U.S. State Actions 0 states State legislative records
Tracked Products 276 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.

Mixed Evidence
Safety Score: 3 out of 5
Safety Rating 60.0%

FDA Status

GRAS

EU Status

Approved

E223

U.S. State Regulations

0 states

None enacted

Safety Assessment

Sodium Metabisulfite receives a safety score of 3/5 (Mixed Evidence) based on a composite analysis of FDA regulatory status, EU approval, scientific literature on health effects, and state-level legislative actions. The FDA classifies Sodium Metabisulfite as "Generally Recognized As Safe" (GRAS), meaning qualified experts consider it safe under intended conditions of use.

Research has identified 1 area of health concern associated with Sodium Metabisulfite. Consumers with specific health conditions should consult a healthcare provider before consuming products containing this ingredient.

What is Sodium Metabisulfite?

Sulfite preservative and antioxidant.

Health Concerns

  • Triggers asthma in sulfite-sensitive individuals (~1%).

Common Uses

Wine, dried fruits, shrimp

Frequently Asked Questions

Is Sodium Metabisulfite safe to consume?

Sodium Metabisulfite has a safety score of 3/5 (Mixed Evidence). It is approved by the FDA for use in food. As with all food additives, moderation is advisable.

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Data Sources

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

Related

Data sourced from official EWG, FDA GRAS, and ingredient toxicology databases. See our methodology for details. Retrieved and formatted by PlainIngredients Editorial