This Sodium Bentonite Clay (montmorillonite) is silica-based and is colloidal in nature, meaning the particles suspend in liquid without breaking down or dissolving, and therefore does not get digested.
Bentonite Clay is mined in Wyoming and Montana. Mining practices are designed to keep out impurities. The clay is kiln-dried, milled, and screened to size. Bentonite Clay is often used to clarify beverages such as juices and wine