Acidity Regulator CAS: 50-21-5 EU: E270

Lactic Acid

Lactic Acid (E270), CAS 50-21-5, is a acidity regulator additive holding a composite safety score of 5 out of 5 (Generally Safe). 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 3,851 tracked food products across our database. It is most commonly used as Yogurt, sauerkraut, beer, cheese.

No U.S. state has enacted specific legislation targeting Lactic Acid 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 Lactic Acid, which factors directly into the assigned safety score. 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 E270 EU additive register
CAS Number 50-21-5 CAS Registry
Category Acidity Regulator FDA functional class
Composite Safety Score 5 / 5 (Generally Safe) PlainIngredients methodology
EFSA ADI Not established EFSA scientific opinion
U.S. State Actions 0 states State legislative records
Tracked Products 3,851 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.

Generally Safe
Safety Score: 5 out of 5
Safety Rating 100.0%

FDA Status

GRAS

EU Status

Approved

E270

U.S. State Regulations

0 states

None enacted

Safety Assessment

Lactic Acid receives a safety score of 5/5 (Generally Safe) based on a composite analysis of FDA regulatory status, EU approval, scientific literature on health effects, and state-level legislative actions. The FDA classifies Lactic Acid 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 Lactic Acid. Consumers with specific health conditions should consult a healthcare provider before consuming products containing this ingredient.

What is Lactic Acid?

Naturally produced during fermentation.

Health Concerns

  • Safe. Produced naturally by human body.

Common Uses

Yogurt, sauerkraut, beer, cheese

Frequently Asked Questions

Is Lactic Acid safe to consume?

Lactic Acid has a safety score of 5/5 (Generally Safe). 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