DearSitter / Can dogs eat / Xylitol (sugar-free gum)

Is xylitol toxic to dogs?

Toxic

Yes. Xylitol is extremely toxic to dogs.

It can crash a dog's blood sugar within 30 minutes and damage the liver. It's in sugar-free gum, mints, some peanut butters, candy, baked goods and toothpaste.

Last reviewed September 2026. Based on the veterinary sources listed below. Every dog is different, so call your vet if you're unsure.

My dog ate xylitol. What do I do?

  1. Call your vet or an emergency clinic right now. Bring the package if you can.
  2. Tell them your dog's weight, how much they ate and roughly when.
  3. Don't make your dog throw up unless a vet tells you to.

Signs to watch for: Vomiting, weakness, stumbling, collapse and seizures, sometimes within an hour.

Poison help lines (US, 24/7)
ASPCA Animal Poison Control
A consultation fee may apply
(888) 426-4435
Pet Poison Helpline
A consultation fee may apply
(855) 764-7661

Why?

In dogs, xylitol triggers a huge release of insulin, which drops blood sugar fast. Larger amounts can also cause liver failure. Check labels for 'xylitol' or 'birch sugar'.

Sources