Why Clumping Litters Containing Sodium Bentonite Can Be Dangerous

Clumping litters with sodum bentonite form a hard, insoluble mass when they get wet. Cats can ingest or inhale this dangerous substance when they use their litter box and when they clean themselves by licking their paws. When the litter is ingested, it may cause dehydration and prevent the absorption of nutrients or fluids.

Sodium bentonite can swell to fifteen times its original size after absoribing moisture. Also, when sodium bentonite coats the digestive tract, it can leave the animal susceptible to infections.