From the Manufacturer's Label:
Table Salt Substitute
Necessary For Normal Kidney Functions**
Potassium Chloride from NOW is a sodium-free potassium supplement that can be used as a table salt substitute. Potassium is a mineral and is the principal positive ion in cells. It is used by your body to support muscle contraction, normal kidney function, nerve conduction and cellular nutrient transfer, among other functions.**
Manufactured by NOW® Foods.Contains no sugar, salt, starch, yeast, wheat, gluten, corn, soy, milk, egg, shellfish or preservatives.