The conventional clay litter industry produces millions of tonnes of non-biodegradable waste each year. The eco alternatives have matured significantly — but they're not all equal.
Wood Pellets — Best Odour Absorption
Pine and cedar pellets are the frontrunner in natural odour control. They disintegrate into sawdust when wet, which some cats dislike. Best paired with a sifting tray.
Corn-Based Litter — Best Clumping
Brands like World's Best Cat Litter use whole-kernel corn and deliver clumping performance that rivals conventional clay. Flushable in most municipal systems.
Paper Litter — Best for Post-Surgery Cats
Soft, dust-free, and gentle on sensitive paws. Not a strong clumper, but the go-to recommendation from vets after declawing or surgery.
Our Verdict
For everyday use, corn-based litter offers the best balance of performance and sustainability. For multi-cat homes with odour challenges, wood pellets are the stronger choice.