How do I choose a litter type? (Clumping/bentonite vs. tofu litter)

Quick answer

Bentonite litter feels most like natural sand, so cats overwhelmingly prefer it, but it produces dust that can cause eye discharge or respiratory issues. Tofu litter is flushable and low-dust, which is convenient for owners, but the coarser texture can irritate a cat's paws and cause avoidance. To reduce stress and prevent litter box avoidance, bentonite litter — which cats tend to prefer — is generally the recommended default.