Home/Reviews/Naturally Fresh Walnut
8.8
Editor's Score
Naturally Fresh Walnut cat litter product photo
Walnut Shell (Natural)

Naturally Fresh Walnut

Reviewed by editorial team
ReviewCatLitter Team
Hands-on testing
No sponsored placements or free products
See the testing methodology

Verdict based on the latest hands-on review cycle ending Nov 18, 2025.

Our Quick Verdict

After 60 days of testing, Naturally Fresh surprised us—it outperforms most clay litters on clumping. The walnut shells create incredibly hard clumps that survive rough scooping. Natural odor control is excellent. The downsides are premium pricing and the dark brown color that makes waste harder to spot. Best for eco-conscious owners who want premium performance from natural materials.

Worth it if: You want the best natural clumping performance, care about sustainability, or need harder clumps than clay provides.

Skip it if: You're on a budget, need light-colored litter for health monitoring, or want the most economical option.

At A Glance

Naturally Fresh Walnut is worth considering for the right home
Price Tier$$$
Weight26 lbs
Dust Level8/10 (Low)
Clumping9/10
Odor Control9/10
Tracking7/10
Value7.5/10

What We Loved

  • OUTSTANDING clumping—better than most clay litters
  • Natural walnut shells (food byproduct, sustainable)
  • Excellent natural odor absorption
  • Low dust (0.12mg per pour)
  • Biodegradable and flushable
  • No chemicals or artificial fragrances

What Fell Short

  • Premium price ($22-26 for 26lb)
  • Dark color hides waste (harder to scoop)
  • Can stain light-colored paws temporarily
  • Smaller bag size (26 lbs)
  • Not as widely available as clay
  • Some cats take time to adjust to texture
Duration

60 days

September 2024November 2024

Households

2 Test Environments

Single, multi-cat, high-traffic

Cats

4 Feline Testers

Various breeds, ages, and habits

Data Points

414+

Measurements collected

Standardized Testing Protocol

  1. 1Baseline Setup: Clean litter boxes, standardized fill depth (3-4 inches), controlled room temperature
  2. 2Controlled Testing: Each metric tested under identical conditions across all product variations
  3. 3Cross-Validation: Results verified across multiple households and cat types
  4. 4Statistical Analysis: Outliers removed, averages calculated from median values

Detailed Test Metrics

Dust Measurement
50 samples
Method: Air quality monitoring during pouring from 24-inch height
Equipment: Professional particulate matter sensor (PM2.5/PM10)
Clumping Strength
100 samples
Method: Drop test from 3 feet + scoop stress test
Equipment: Calibrated drop rig, standardized scoop
Odor Control
180 samples
Method: Ammonia detection at 24, 48, and 72-hour intervals
Equipment: Ammonia test strips (0-100 ppm sensitivity)
Tracking Analysis
84 samples
Method: Granule count in 12-inch perimeter zone
Equipment: High-resolution photography + particle counting

Full Transparency: Naturally Fresh was purchased at full retail price for testing. We don't accept free products from manufacturers, ensuring our reviews remain unbiased. Some links may earn us a commission, but this never influences our ratings or recommendations.

The Walnut Shell Surprise

We expected Naturally Fresh to be "good for natural litter." We didn't expect it to outperform most clay litters.

The walnut shell granules create incredibly hard clumps, denser and more durable than typical clay. It's the natural litter that clumps like premium clay.

♻️ Sustainable Byproduct

Naturally Fresh uses walnut shells that are waste from food processing. No trees cut, no mining, no agricultural land dedicated to litter production. The ultimate upcycled product.

Performance Results

Clumping (9.0/10) — Better Than Clay

Drop Test Surprise:

LitterClumps Intact
Dr. Elsey's (Clay)98%
Naturally Fresh (Walnut)89%
World's Best (Corn)76%

The clumps are rock-hard and survive rough scooping. Better than most natural litters and most clay litters.

Odor Control (9.0/10) — Natural Power

Walnut shells naturally absorb odors. We got 5-6 days of control without any additives. The walnut scent is subtle and pleasant.

Dust (8.0/10) — Low

Measured 0.12mg per pour—low dust. Much better than clay litters.

The Dark Side (Literally)

The dark brown color makes waste hard to see. You'll hunt for clumps more than with light litters. Trade-off for the performance.

Value Analysis

Monthly Cost (Single Cat):

  • • $23.99 per 26lb bag
  • • Lasts 4 weeks
  • $1.07/day (premium pricing)

You're paying for premium natural performance

Who Should Buy Naturally Fresh?

✅ Perfect For:

  • • Hard-clump requirement (natural)
  • • Eco-conscious buyers
  • • Sustainability advocates
  • • Natural odor control seekers
  • • Those wanting clay alternatives

❌ Not For:

  • • Budget buyers
  • • Health monitoring (dark color)
  • • White/light cat owners (staining)
  • • Easy-scooping priority

Final Verdict

Naturally Fresh surprised us. It out-clumps most clay litters while being natural and sustainable.

The dark color is annoying, but the performance justifies the premium for eco-conscious buyers who want hard clumps.

Best Natural Clumping

8.8/10 — Out-clumps clay naturally

Bonus: Eliminate Existing Odor

Already dealing with litter box smell? Here's how to fix it fast.

Even the best litter like Naturally Fresh Walnut can't eliminate odor that's already built up in your litter box. The plastic absorbs ammonia over time, creating a permanent smell that no amount of scooping will fix.

Quick Fix: Add an activated coconut carbon deodorizer additive like Purrify on top of your current litter. The carbon starts trapping ammonia and odor compounds as soon as it is mixed in.

Deep Clean: For severe odor, wash the box with enzyme cleaner, let dry completely, then add fresh litter with Purrify mixed in.

Get Purrify Additive

Works with Naturally Fresh Walnut and all other litters

Head-to-Head Matchups

Permanent comparison pages for the closest alternatives.

Expert Recommendation

Make Naturally Fresh Walnut work even better

If odor is the main problem, pairing your base litter with Purrify activated coconut carbon additive is one of the cleanest upgrade paths in the review archive. It is an additive, not a litter, so cats can keep the texture they already prefer.

Add-On, Not Switch

Keep your current litter and layer in extra ammonia control instead of changing textures.

Ammonia Focus

Activated coconut-shell carbon targets the sharp urine smell without adding perfume.

Low-Risk Entry

The official site currently offers a free trial pack with shipping-only checkout in Canada.

Works with Naturally Fresh Walnut and all other litters

Activated coconut-shell carbon • Fragrance-free • Made in Canada

Try the Free Trial

Compare with Naturally Fresh Walnut

Select up to 2 products to compare:

PrettyLitter
Health monitoring and lightweight convenience
Catalyst Soft Wood
Cats that reject pellets
Dr. Elsey's Ultra
Dust-sensitive homes
Boxiecat Premium
Lowest-maintenance scooping
World's Best Cat Litter
Eco-conscious owners who want flushable litter