Ingredient library

Doing real work · Litter substrate

Plant-based litter substrate

Also appears on labels as: kiln-dried pine pellets, 100% natural pine shavings (kiln-dried, reclaimed lumber), 100% reclaimed natural wood fiber, 100% natural walnut shells, 100% natural wheat, all-natural proprietary wheat blend

Milled wood, walnut shell, wheat, or recycled paper used in place of mined clay.

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Where it comes from
Lumber and agricultural waste streams, kiln-dried to kill mold and drive off volatile compounds.
Why it's in the product
Absorption and odor control with far less airborne dust than clay.
Safety and toxicity
The main reason to prefer these is dust, and they deliver on it. One nuance: raw softwood phenols are the basis of the old warning about pine bedding, and kiln-drying is specifically the step that removes them. Kiln-dried pine is not the same product as fresh pine shavings.
Interactions and who should be careful
Wheat and walnut litters are worth thinking twice about in a household where a pet has a documented grain or nut sensitivity, though ingestion is the only realistic route.

General reference, not veterinary advice. Dose, breed, and existing conditions change the answer, so talk to your vet before changing what your pet eats. Think we got this wrong? Tell us and we log it publicly.

Found in 4 scored products

Lowest scores first. Its presence here is not what drove those scores.