Food Additive · EU 504

Magnesium Hydroxide Carbonate

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

Low Risk
Score 4 of 5
Magnesium Hydroxide Carbonate: 4/5 (Low Risk)

According to the U.S. Food and Drug Administration, Magnesium Hydroxide Carbonate 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.

Browse all Food Additive additives →

The verdict

Magnesium Hydroxide Carbonate 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

Magnesium Hydroxide Carbonate (504) 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 Magnesium Hydroxide Carbonate 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 Magnesium Hydroxide Carbonate 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 504 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

504

U.S. State Regulations

0 states

None enacted

Safety Assessment

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

How Magnesium Hydroxide Carbonate compares

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

Ingredients by safety score (Magnesium Hydroxide Carbonate 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 Magnesium Hydroxide Carbonate?

Magnesium Hydroxide Carbonate is a food additive (504) classified as food additive.

Common Uses

Various processed foods

Frequently Asked Questions

Is Magnesium Hydroxide Carbonate safe to consume?

Magnesium Hydroxide Carbonate 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 Magnesium Hydroxide Carbonate

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.