Water chestnut — Food safety facts
Safe to share · Dogs · full breakdown on the linked food page
Peeled and sliced, raw or cooked.
The full verdict, portion guidance and serving notes are collected on the Water chestnut food facts page.
Short answer
No, dogs should not eat water chestnuts with the skin on. The peel can be tough to digest and may cause a stomach upset or even a blockage. Always peel and slice the water chestnut, whether you serve it raw or cooked. Offering a small, peeled piece as a treat is safe, but watch for any digestive issues and call your own vet if anything seems off.