Calcium carbonate is a mineral used to add calcium to foods and regulate acidity. It can also serve as a coloring agent.

Calcium Carbonate

Found In

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

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

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

In 2006 and 2011, dietary reference intakes for calcium were reviewed by the National Academies of Sciences, Engineering and Medicine.

In 2008, FDA approved a health claim for calcium, vitamin D and osteoporosis.

In 1975, the health aspects of carbonates and bicarbonates as food ingredients were evaluated.

Safe for intended uses. Authorized for use in the EU (nutrients, additives).

In 2023, EFSA re-evaluated the safety of calcium carbonate.

In 2015, EFSA issued an opinion on dietary reference intakes for calcium.

In 2009, 2010 (a, b), 2011 and 2016, EFSA assessed health claims for calcium.

Safe for intended uses.

Safe for intended uses.

In 2006 and 2011, dietary reference intakes for calcium were reviewed by the National Academies of Sciences, Engineering and Medicine.

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