Calcium hydroxide is a compound used to balance acidity and firm up foods. It can also be used to fortify foods and beverages with calcium.
Calcium Hydroxide
Found In
- Beverages
- Corn tortillas
- Fortified drinks
- Pickled foods
Also Known As
- Calcium Hydrate
- E526
- Hydrated Lime
- Slaked Lime
The Beverage Bottom Line
Calcium hydroxide 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 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 calcium oxide and calcium hydroxide as food ingredients were evaluated.
Health Canada
Safe for intended uses. Permitted as a supplemental ingredient.
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.