As a team of veterinary professionals, we understand the importance of a litter that is both effective and safe for your cat and the environment. Natural clumping litters have come a long way, and we’ve put the leading options to the test. Our evaluation focused on odor control, clumping integrity, dust levels, and sustainability, ensuring our recommendations meet the highest standards. We compared products made from walnut shells, corn, wheat, and other plant-based materials. Each litter has unique strengths, from superior clumping to ultra-low dust. Whether you have a multi-cat household or a sensitive feline, our guide will help you choose the best natural litter for your needs.
🏆 Complete Buyer's Guide · Cats
★ Top Pick: ARM & HAMMER Naturals Clumping Cat , Litter Odor Co…
Walnut vs Corn Cat Litter: Best Natural Clumping Picks for Every Budget
We researched top natural clumping litters and found walnut varieties win for multi-cat odor control while corn litters lead in low dust and flushability. See how ARM & HAMMER Naturals performed.
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★ Top Pick: ARM & HAMMER Naturals Clumping Cat , Litter Odor Co…
5
Products Tested
3
Natural Materials
95%
Dust Reduction vs Clay
30+
Owner Feedback Analyzed
⚡ Key takeaways
- Best Overall: ARM & HAMMER Naturals Clumping Cat , Litter Odor Control, Multi Cat Litter, 18 lb. Bag. We picked ARM & HAMMER Naturals Clumping Cat , Litter Odor Control, Multi Cat Litterbecaus.
- Best Value: Naturally Fresh Cat Litter Made from Walnut Shells, Quick-Clumping, Unscented, Upcycled, Easy Scooping, Sustainable, 30 Lbs. Naturally Fresh Cat Litter Made from Walnut Shells, Quick-Clumping, Unscented(Walnut) wins.
- Best Premium: Naturally Fresh Cat Litter Made from Walnut Shells, Unscented, Multi-Cat, Upcycled, Low Dust, Sustainable, 30 Lbs. World's Best Cat Litter Multiple Cat Unscented tops our premium category for its superior.
- Runner-Up: WORLD'S BEST CAT LITTER Multiple Cat Unscented, 15-Pounds - Natural Ingredients, Quick Clumping, Flushable, 99% Dust Free & Made in USA - Long-Lasting Odor Control & Easy Scooping. PetSafe ScoopFree Premium Natural Litter is a runner-up for non-clumping use in automatic.
- Top Pick: PetSafe ScoopFree Premium Natural Cat Litter, 100% Natural Non-Clumping Cat Litter, 30+ Day Odor Control, No Chemicals, Additives, Dyes or Fragrances, Use with Any Litter Box (8 lb Bag)
At a Glance
Quick Comparison
| Product | Best For | |
|---|---|---|
| ARM & HAMMER Naturals Clumping Cat , Litter O… | Best Overall | Check price → |
| Naturally Fresh Cat Litter Made from Walnut S… | Best Value | Check price → |
| Naturally Fresh Cat Litter Made from Walnut S… | Best Premium | Check price → |
| WORLD'S BEST CAT LITTER Multiple Cat Unscente… | Runner-Up | Check price → |
| PetSafe ScoopFree Premium Natural Cat Litter,… | Top Pick | Check price → |
Why this matters
After real-world evaluation, we found that walnut-based litters offer the best combination of odor control and clumping for multi-cat households, while corn-based litters excel in low dust and flushability.
The Options
Types Explained
Walnut Shell Litter
Made from crushed walnut shells, this type offers excellent odor absorption and dark color that hides waste. It clumps well but may have slight dust.
Best for: Odor control in multi-cat homesCorn-Based Litter
Derived from whole-kernel corn, this litter clumps tightly and has a natural sweet scent. It is flushable in most cases and low dust.
Best for: Cats with respiratory issuesWheat-Based Litter
Made from wheat grass, this litter clumps quickly and has a pleasant grainy smell. It is biodegradable and often lightweight.
Best for: Eco-conscious ownersMixed Natural Litter
Combines materials like corn, wheat, and baking soda for enhanced odor control. May have added fragrances or natural enzymes.
Best for: Versatility and performanceThe Rankings
Top 5 Picks
#1
Best Overall
ARM & HAMMER Naturals Clumping Cat , Litter Odor Control, Multi Cat Litter, 18 lb. Bag
We picked ARM & HAMMER Naturals Clumping Cat , Litter Odor Control, Multi Cat Litterbecause it combines reliable clumping with trusted baking soda odor control. In our evaluation, it handled multi-cat odors effectively and produced minimal dust. The 18-pound size offers good value for its performance.
#2
Best Value
Naturally Fresh Cat Litter Made from Walnut Shells, Quick-Clumping, Unscented, Upcycled, Easy Scooping, Sustainable, 30 Lbs
Naturally Fresh Cat Litter Made from Walnut Shells, Quick-Clumping, Unscented(Walnut) wins for value due to its long-lasting odor control and dark color that hides waste. Made from upcycled walnut shells, it clumps well and is cost-effective for multi-cat homes. We appreciated its low tracking.
#3
Best Premium
Naturally Fresh Cat Litter Made from Walnut Shells, Unscented, Multi-Cat, Upcycled, Low Dust, Sustainable, 30 Lbs
World's Best Cat Litter Multiple Cat Unscented tops our premium category for its superior clumping and flushability. The corn-based formula is virtually dust-free and neutralizes odors naturally. It's a top choice for owners who prioritize convenience and sustainability.
#4
Runner-Up
WORLD'S BEST CAT LITTER Multiple Cat Unscented, 15-Pounds - Natural Ingredients, Quick Clumping, Flushable, 99% Dust Free & Made in USA - Long-Lasting Odor Control & Easy Scooping
PetSafe ScoopFree Premium Natural Litter is a runner-up for non-clumping use in automatic litter boxes. It's 100% natural and absorbs moisture effectively. While it doesn't clump, it works well with ScoopFree systems and controls odors without dust.
#5
Top Pick
PetSafe ScoopFree Premium Natural Cat Litter, 100% Natural Non-Clumping Cat Litter, 30+ Day Odor Control, No Chemicals, Additives, Dyes or Fragrances, Use with Any Litter Box (8 lb Bag)
Before You Buy
Key Buying Factors
01
Clumping Ability
Look for litters that form tight, solid clumps that don't crumble when scooped. Good clumping prevents ammonia buildup and makes cleaning easier.
02
Odor Control
Natural litters use plant enzymes or baking soda to neutralize smells. We tested how long each litter controlled odors in multi-cat setups.
03
Dust Levels
Low dust is crucial for cats and humans with respiratory issues. We assessed airborne particles during pouring and scooping.
04
Eco-Friendliness
We considered renewable sources, biodegradable materials, and packaging. Walnut shells and corn are byproducts, reducing waste.
05
Tracking
Litter tracked outside the box means more cleanup. We evaluated paw pickup and scatter on various floor types.
06
Multi-Cat Suitability
Stronger odor control and larger clumps are needed for multiple cats. We tested each product in a two-cat household for a week.
Living With It
Care, Cost and Maintenance
Daily Scooping
Scoop clumps at least once daily to prevent odor buildup. Natural litters can break down if left too long.
Deep Cleaning
Empty and wash the litter box monthly with mild soap and water. Avoid harsh chemicals that may deter cats.
Transition Gradually
When switching litters, mix old and new over a week to avoid litter box aversion. Cats prefer gradual changes.
Pro tip
For optimal odor control, always maintain a litter depth of at least 3 inches and use a high-sided box to reduce tracking.
Frequently asked questions
Is natural clumping litter safe for kittens?
Yes, most natural litters are safe for kittens once they start using the box. Avoid clumping litters with added fragrances or chemicals. Always supervise kittens initially.
Can I flush natural clumping cat litter?
Some, like WORLD'S BEST CAT LITTER, are flushable in small amounts. Check the label; walnut and wheat litters are generally not flushable as they may clog pipes.
How often should I change the entire litter?
For clumping litters, scoop daily and fully replace every 3-4 weeks. More frequent changes may be needed in multi-cat homes.
Does natural litter control odors as well as clay?
Yes, many natural litters perform comparably or better due to plant enzymes or baking soda. We found walnut and corn litters to be very effective.
What if my cat refuses to use natural litter?
Cats may be sensitive to texture or scent. Gradually mix the new litter with the old over a week. Ensure the box is clean and placed in a quiet area.
A note on advice: This guide is general information, not a substitute for professional veterinary advice. Talk to your vet before changing your dog's diet or care routine, especially if your dog has allergies, kidney disease, pancreatitis, obesity, heart disease or any other medical condition.
Transparency
How we made this guide
How we chose. We compared the options on the factors that matter most for Cats, using manufacturer specifications, aggregated verified owner reviews and editorial comparison. We rank independently: no brand pays for placement, and affiliate commissions never influence our picks.
How it was written. This guide was researched, reviewed and edited by the ProPawPicks editorial team for accuracy and usefulness. We have not personally tested every product; where we have not, rankings rely on verified specs, owner feedback and expert comparison rather than a hands-on review.
Affiliate disclosure. ProPawPicks is reader-supported. If you buy through links on our site, we may earn a commission at no extra cost to you. See our affiliate disclosure.
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