We tested the best natural cat litter for odor control and clumping. Our top picks are eco-friendly multicat corn, wood, ...

However, the clumps broke apart more than the corn, grain, grass, and walnut litter varieties. Throughout our testing, it absorbed odors, prevented ammonia buildup, and gave off a fresh pine scent.

Pine has a natural scent ... which settles at the bottom of the box, leaving fresh pellets on top. “With clumping litter, you ...