Can Dogs Eat Xylitol?

Verdict: TOXIC — this is one of the most dangerous substances for dogs.

Xylitol is an artificial sweetener used in gum, candy, baked goods, peanut butter, toothpaste and sugar-free products. For dogs it causes a rapid, dangerous drop in blood sugar (hypoglycemia) and can cause liver failure.

Why it's dangerous

In dogs, xylitol is absorbed quickly into the bloodstream and triggers a massive release of insulin, crashing blood sugar within 30 minutes to a few hours. At higher doses it also causes acute liver damage, which can be fatal.

Symptoms

• Vomiting
• Lethargy, weakness
• Loss of coordination, stumbling
• Tremors
• Seizures
• Coma
• Signs of liver failure (jaundice, bleeding) within 12-24 hours

How much is dangerous?

Even small amounts are dangerous. A few pieces of xylitol gum can cause hypoglycemia in a small or medium dog. There is no safe dose — treat any ingestion as an emergency.

What to do if your dog eats xylitol

1. Call your veterinarian or Pet Poison Helpline (855) 764-7661 immediately.
2. Do NOT wait for symptoms — hypoglycemia can start in under an hour.
3. The vet may give IV glucose and monitor blood sugar for at least 12 hours.
4. Liver enzymes must be checked, since liver damage can appear 12-24 hours later.
5. Hospitalization is often required.

FAQ

Is xylitol in all sugar-free gum?

Many brands use it, but not all. Check the ingredient list — if it contains xylitol, keep it away from your dog.

Can dogs eat sugar-free peanut butter?

Only if it does NOT contain xylitol. Many brands sweeten with xylitol — always read the label.

How fast do symptoms appear?

Hypoglycemia symptoms can appear in 30 minutes to a few hours. Liver damage appears within 12-24 hours.

Is xylitol toxic to cats too?

Cats are less sensitive, but keep it away from all pets.

Sources

• ASPCA: People Foods to Avoid Feeding Your Pets (aspca.org)
• VCA Animal Hospitals: Xylitol Poisoning in Dogs (vcahospitals.com)