Is chitosan vegan?

✗ Not vegan✗ Not vegetarian
No: chitosan is neither vegan nor vegetarian. Crustacean shells.

Where does it come from?

Crustacean shells. Sold as a 'fat binder', extracted from shrimp and crabs. A mushroom version exists but remains rare.

Vegan alternatives
Mushroom chitosan, plant fibers

Verified by Kiwee · updated on 19 August 2026 · JSON-LD FAQPage + BreadcrumbList · hreflang fr/en