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