Cat Litter Types Compared: Which Is Best for Your Cat?

The cat litter market is bewildering. This guide cuts through the options to help you find the right litter for your cat and your home.

Choosing the right litter sounds simple but can meaningfully affect whether your cat uses their tray reliably. Here is a straightforward comparison of the main types available in the UK.

Clumping clay litter

Best for: Most cats; general use; odour control.

Clumping litter forms solid clumps when wet, making it easy to scoop out urine along with faeces. It is the most widely used type in the UK and is well-accepted by the majority of cats.

Pros: Good odour control, easy to maintain, shows clearly what needs removing, widely available and competitively priced.

Cons: Can be dusty (choose low-dust versions if your cat is sensitive), heavier to carry, and clay mining has an environmental impact.

Top tip: Fine-grain clumping litter is preferred by most cats over coarser grain.

Non-clumping clay litter

Best for: Budget-conscious owners; cats who do not tolerate clumping litter.

Pros: Less expensive, widely available.

Cons: Less effective odour control, harder to identify what needs scooping, requires more frequent full tray changes.

Wood pellets

Best for: Environmentally conscious owners; cats with dust sensitivities.

Made from compressed sawdust, wood pellets are biodegradable, low-dust, and eco-friendly. They absorb urine and then break down into sawdust, which falls to the bottom of the tray while unused pellets remain on top.

Pros: Environmentally friendly, very low dust, good odour control for urine, relatively inexpensive.

Cons: Some cats refuse them due to the texture as pellets feel very different underfoot to fine-grain litter. A two-layer or sieve tray gives the best results.

Transition tip: If switching from clay to wood, mix the two over two to three weeks. Some cats need longer.

Silica gel crystals

Best for: Busy owners wanting low-maintenance odour control; cats who tolerate the texture.

Silica crystals absorb moisture and control odour very effectively, lasting longer than clay before needing a full change.

Pros: Excellent odour control, low maintenance, low dust.

Cons: Some cats dislike the crunching sound underfoot. More expensive than clay. Not biodegradable. Faeces still needs daily scooping.

Paper-based litter

Best for: Post-surgery or recovery use; cats with paw injuries; kittens.

Paper pellets or recycled paper crumbles are very gentle, dust-free, and soft on paws.

Pros: Very low dust, soft on paws, biodegradable, suitable after surgery.

Cons: Poor odour control compared to other types, needs more frequent changes.

Natural and biodegradable alternatives

Litters made from corn, wheat, coconut shell, or tofu are increasingly available in UK pet shops. Performance varies considerably by brand. Some clump well and control odour effectively; others do not. Check recent UK reviews before committing to a large bag, as quality is more variable than the established types.

Summary: which litter to choose

• Most cats: Fine-grain, unscented clumping clay
• Eco-conscious household: Wood pellets with a patient transition
• Dust-sensitive cat: Low-dust clumping clay or paper-based
• Low-maintenance preference: Silica gel crystals
• Kitten or post-surgery cat: Paper-based
• Budget priority: Non-clumping clay

Whatever type you use, avoid perfumed or heavily scented litters. Cats find strong artificial fragrances unpleasant and may avoid a tray that smells of them.

Related articles

• The Perfect Litter Tray Setup
• Cat Peeing Outside the Litter Tray

Frequently asked questions

What litter do vets recommend?

Most vets and behaviourists recommend fine-grained, unscented clumping litter as the default. It most closely resembles the natural substrate cats would choose and is well-tolerated by the majority of cats. If your cat has respiratory sensitivities, low-dust options are preferable.

Can I switch litter types suddenly?

Sudden changes often cause cats to avoid the tray. Transition gradually by mixing old and new litter over two to three weeks, gradually increasing the proportion of the new type until you have fully switched over.