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ingredient

Xylitol

IMMEDIATE VET ATTENTION

No. Xylitol is highly toxic to dogs and even small amounts can cause a life-threatening drop in blood sugar.

What to do

Treat as an emergency. Contact your vet or an emergency vet immediately and take the packaging with you.

When to contact a vet: Yes — go to a vet immediately. Do not wait for symptoms.

Symptoms to look for

  • vomiting
  • weakness or wobbliness
  • collapse
  • tremors
  • seizures
  • lethargy

Why

Xylitol is a sugar substitute found in sugar-free gum, mints, sweets, some peanut butters, baked goods, supplements and certain toothpastes. In dogs it triggers a rapid release of insulin, causing a sudden and dangerous fall in blood sugar, and larger amounts can damage the liver. Signs can appear within 30 minutes.

Substances of concern
xylitol
Parts to avoid
Any product containing xylitol or birch sugar.
How much matters
Very small amounts can be dangerous, so any suspected ingestion is treated as urgent.
Severity
Very high

Sources

Information reviewed against recognised veterinary and animal-safety sources. Source organisations are independent of Is It For Dogs unless otherwise stated.

Last reviewed 6 September 2026 · next review due September 2027.

Safety classifications are based on available expert and veterinary information. Individual dogs may react differently, particularly dogs with allergies, existing health conditions or specific dietary requirements.

Important: Is It For Dogs provides general information about the safety of foods, plants, drinks, ingredients and other items around dogs. Our information is based on sources we consider reliable and is intended to help dog owners make informed decisions. It is not a substitute for advice from a qualified veterinary professional. Read more

Dogs can react differently depending on their size, age, health, allergies, medications, the amount consumed and other circumstances. An item classified as Safe is not necessarily suitable for every individual dog.

If your dog has eaten something potentially poisonous or dangerous, has eaten an unknown substance, or is showing concerning symptoms, contact your veterinarian or an emergency veterinary service immediately.

Do not induce vomiting or give your dog medication unless specifically instructed to do so by a veterinary professional.

Safety & Disclaimer

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