Walnut Shell (Natural)
Naturally Fresh Walnut
A walnut-shell litter that clumps harder than many natural competitors and absorbs odor naturally without added fragrance.
Overall score
8.8/10
Cost per day
$0.54
Reviewed Nov 18, 2025
Head-to-head comparison
Naturally Fresh Walnut vs PrettyLitter: Which Should You Buy?
Naturally Fresh gives you natural clumping for less per day. PrettyLitter gives you a color warning and a bag you can lift with one hand. Clumping against health monitoring, and only you know which you need.
ReviewCatLitter editorial teamUpdated Mar 4, 2026
This comparison page is maintained by the ReviewCatLitter editorial team and grounded in the same scoring framework used across the published review catalog.
Silica Crystal
PrettyLitter
A crystal litter built around health monitoring and light weight, with a strong subscription convenience angle and weaker clumping value.
Overall score
8.8/10
Cost per day
$0.80
Reviewed Mar 4, 2026
Overall winner
Naturally Fresh Walnut
Naturally Fresh Walnut is the strongest all-around pick in this comparison for natural clumping without corn.
Lowest daily cost
Naturally Fresh Walnut at $0.54/day
Budget is often the deciding factor in this tier.
Best odor control
PrettyLitter at Very good urine odor control
Odor control often decides whether a litter feels tolerable long term.
Tracks less outside the box
PrettyLitter at Minimal
Tracking can be more important than overall score in small spaces.
What we actually measured
Every figure below is a reading from our own test runs, not a rating. Where a run never took a reading it says so.
| Reading | Naturally Fresh Walnut | PrettyLitter | Gap |
|---|---|---|---|
| Dust weighed per pourParticulates caught in the air while the bag goes into the box. Lower is better. | 0.13 mg | not measured | only one side measured |
| Clumps that survived the drop testShare of clumps still whole after a three-foot drop. Higher is better. | 89% | not measured | only one side measured |
| Bag priceWhat the tested bag cost. Bag sizes differ, so read it next to cost per pound. | $24.99 | $24.00 | $0.99 |
| Cost per poundBag price divided by what is in the bag. Lower is better. | $0.96better | $3.00 | $2.04 |
| Cost per dayWhat the box costs to keep running each day. Lower is better. | $0.54better | $0.80 | $0.26 |
| Cost across a yearThat daily cost carried over a full year of use. Lower is better. | $197better | $292 | $95 |
Neither run recorded granules outside the box, ammonia after one day and ammonia after three days, so those rows are left out rather than filled in from a similar bag. The full test data shows every reading we have.
Why Naturally Fresh Walnut wins this matchup
Primary tradeoff: Naturally Fresh Walnut's weakest area here is tracking.
It is also the cheapest daily option at $0.54 per day.
| Product | ||
|---|---|---|
| Overall Score | 8.8 | 8.8 |
| Pricing | ||
| Price | $24.99 | $24.00 |
| Weight | 26 lbs | 8 lbs |
| Cost / Day | $0.54 | $0.80 |
| Performance | ||
| Dust Control | 8.1 0.13mg per pour | 8.6 Very low crystal dust |
| Clumping | 8.9 Hard for natural litter | 4.2 Non-clumping |
| Odor Control | 8.4 Strong natural absorption | 8.9 Very good urine odor control |
| Tracking Outside the Box | 7.4 Moderate | 9.1 Minimal |
| Value for Cost | 8.1 $0.54/day · $24.99 | 6.8 $0.80/day · $24.00 |
| Features | ||
| Type | Walnut Shell | Silica Crystal |
| Flushable | ||
| Scented | No | No |
| Our Verdict | ||
| Best For | Natural clumping without corn | Health monitoring and lightweight convenience |
| Read ReviewCheck Price | Read ReviewCheck Price | |
Best fit
Naturally Fresh Walnut
Naturally Fresh Walnut makes the most sense for natural clumping without corn.
Worth it if
You want a walnut-shell litter that clumps harder than many natural competitors and absorbs odor naturally without added fragrance.
Skip it if
You need a formula that solves natural clumping without corn better.
Best fit
PrettyLitter
PrettyLitter makes the most sense for health monitoring and lightweight convenience.
Worth it if
You care more about health signals and easy lifting than classic clumping performance.
Skip it if
You want traditional scoopable clumps or the best value per pound.
If neither option is quite right
The closest litters we have tested to this matchup, on score and on price.
Soft Wood / Pine
Catalyst Soft Wood
Weighed 0.15mg per pour and runs at $0.72 a day.
Best for cats that reject pellets
Clumping Clay
Dr. Elsey's Ultra
Weighed 0.03mg per pour and runs at $0.51 a day.
Best for dust-sensitive homes
Premium Clumping Clay
Boxiecat Premium
Weighed 0.04mg per pour and runs at $0.55 a day.
Best for lowest-maintenance scooping
Read the full reviews
Use this page to choose a winner quickly, then open the full product reviews if you want the long-form test notes.
Keep comparing nearby options
Related matchups that share one of the same products and answer the next likely decision.
Related matchup
Dr. Elsey's Ultra vs PrettyLitter
Ultra is scoopable clay. PrettyLitter is crystals that change color to flag a health problem.
Winner: Dr. Elsey's Ultra
Related matchup
Dr. Elsey's Ultra vs Naturally Fresh Walnut
Ultra holds its clumps better and pours less dust. Naturally Fresh is the plant litter that gets closest to it, for a little more per day.
Winner: Dr. Elsey's Ultra
Related matchup
Arm & Hammer Clump & Seal vs Naturally Fresh Walnut
Naturally Fresh is the way out of fragrance and heavy dust without paying premium clay money.
Winner: Naturally Fresh Walnut
Related matchup
Arm & Hammer Clump & Seal vs PrettyLitter
Clump & Seal covers smell with fragrance and clumps for far less money. PrettyLitter is unscented crystals that keep an eye on your cat's urine instead.
Winner: Arm & Hammer Clump & Seal
Related matchup
Naturally Fresh Walnut vs Sustainably Yours
Naturally Fresh is the cheaper natural bag and clumps nearly as hard. Sustainably Yours flushes and tracks less.
Winner: Sustainably Yours
Related matchup
Naturally Fresh Walnut vs World's Best Cat Litter
Corn against walnut. World's Best flushes and barely leaves the tray. Naturally Fresh held more clumps together in our drop test and costs less per day.
Winner: Naturally Fresh Walnut
Quick Answers
Which is better: Naturally Fresh Walnut or PrettyLitter?
Naturally Fresh Walnut comes out ahead on the balance of dust, clumping, odor control, tracking and daily cost. PrettyLitter is still the one to buy for health monitoring and lightweight convenience.
Which is cheaper per day: Naturally Fresh Walnut or PrettyLitter?
Naturally Fresh Walnut runs at $0.54 a day against $0.80 for PrettyLitter.
Which controls smell better: Naturally Fresh Walnut or PrettyLitter?
PrettyLitter scored higher: very good urine odor control, against strong natural absorption for Naturally Fresh Walnut.
Which tracks less outside the litter box: Naturally Fresh Walnut or PrettyLitter?
PrettyLitter keeps more litter in the box: minimal, against moderate for Naturally Fresh Walnut.