Potassium chloride can be used as a salt substitute to replace sodium. Potassium chloride is also a multi-purpose ingredient that can act as a nutrient, acidity regulator, stabilizer or thickener.
Potassium Chloride
Found In
- Beverages
- Foods
- Infant formula
Also Known As
- E508
- Salt Substitute
The Beverage Bottom Line
Potassium chloride 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, GRAS FDA-Notified)
In 2012, FDA had no objections when potassium chloride replaces sodium in a salt mixture.
In 2019, dietary reference intakes for potassium were assessed by the National Academies of Sciences, Engineering and Medicine.
In 1979, health aspects of potassium chloride as a food ingredient were evaluated.

Health Canada
Safe for intended uses. Permitted as a supplemental ingredient.
In 2019, dietary reference intakes for potassium were assessed by the National Academies of Sciences, Engineering and Medicine.
Potassium chloride is also authorized for use as a firming agent.
This page was last updated on 6/30/2025.