The important functional utilization of montmorillonite includes
food additive for health and stamina, for antibacterial activity
against tooth and gum decay, as sorbent for nonionic, anionic, and
cationic dyes, and the use as catalyst in organic
synthesis.
Montmorillonite clay is also added to some dog and cat foods as an
anti-caking agent and because it may provide some resistance to
environmental toxins.