Is xylitol poisonous to dogs and cats?

Even small amounts can make a dog’s blood sugar crash within an hour.

Has your pet eaten some?

Call your vet or the Animal PoisonLine straight away, even if your pet seems fine. Many poisons don't cause signs for hours, and treatment works best early. Keep the packet or a photo of what they ate. Don't try to make them sick unless a vet tells you to.

Why it's a problem

Xylitol is a sweetener in sugar-free gum, sweets, some peanut butters, toothpaste and baked goods. It may be listed as E967 or birch sugar. In dogs it causes a sudden drop in blood sugar and can damage the liver. Very small amounts can be dangerous for small dogs. Less is known about cats, so treat it as dangerous.

Signs to look out for

  • Being sick
  • Weakness or wobbliness
  • Collapse
  • Shaking or fits

Getting help

Call your own vet first. If they're closed, their phone line will tell you who covers out of hours. The Animal PoisonLine (01202 509 000, a charge applies) gives 24-hour advice to owners.

This page is general guidance, not a diagnosis. Every pet is different, so always follow your vet's advice.

Some things can't wait.

If your pet is struggling to breathe, has collapsed, or is bleeding heavily, skip the checker and call your nearest emergency vet now.

CheckMyPet gives guidance, not a diagnosis. Always follow your vet's advice.

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