Calcium alginate is a polysaccharide found in brown seaweed, and is an insoluble form of alginates. It is a multi-purpose food additive (e.g., emulsifier, thickener, stabilizer).

Calcium Alginate

Found In

  • Baked goods
  • Beverages
  • Confections
  • Egg products
  • Jams and jellies

Also Known As

  • Alginic Acid, Calcium Salt
  • E404

The Beverage Bottom Line

Calcium alginate is authorized for use in the U.S., Europe and Canada.

 

This ingredient may have authorizations in countries not included on this site.

International Assessments and Authorizations

U.S. Food And Drug Administration (FDA)

Affirmation by FDA this ingredient is generally recognized as safe as a direct human food ingredient. (GRAS FDA-Affirmed)

In 1973, the health aspects of alginates as a food ingredient were evaluated

Learn More →

European Food Safety Authority (EFSA)

Safe for intended uses.

Learn More →

Joint FAO/WHO Expert Committee on Food Additives (JECFA)

Safe for intended uses.

Learn More →

Health Canada

Safe for intended uses.

Learn More →

This page was last updated on 6/30/2025.