Question

Can dogs eat walnut shells?

Answer 1

Are shelled walnuts safe for dogs? No, walnuts can become infected with toxic fungi even in the shell. ... Walnut shells can get stuck in the pet's intestines and cause a blockage, especially in small breed dogs. If your canine companion eats walnut shells, be sure to call your vet immediately.

Answer 2

Walnuts can become contaminated with toxic mold even in the shell.

The only reason shelled walnuts are safer than unshelled walnuts is that, given the opportunity, some dogs might eat the shell.

If your dog eats the shell of a walnut, it can cause an impaction.