Can Dogs Eat Xylitol?
Why it’s a problem
In dogs, xylitol triggers a massive insulin release that crashes blood sugar within 30 to 60 minutes, and larger doses destroy the liver. Sugar-free gum is the most common source — a few pieces can kill a small dog. It also hides in peanut butter, mints, protein bars and some toothpastes, sometimes labeled as birch sugar.
How to serve it safely
Read labels on anything sugar-free and treat xylitol like a hazmat item. Keep gum, mints, nut butters and baked goods — and the purses and coat pockets they live in — out of dog range.
Warning signs to watch for
Vomiting, weakness, wobbliness, collapse and seizures from hypoglycemia within the first hour; liver damage shows as jaundice and lethargy a day or more later.
When to call the vet
If your dog swallows anything containing xylitol, go to a vet immediately — before symptoms, not after.
Common questions
How much xylitol is dangerous?
As little as one or two pieces of sugar-free gum can cause hypoglycemia in a small dog. There is no margin for error.
What is birch sugar?
It is another name for xylitol used on some labels. Treat it exactly the same way — deadly to dogs.
More foods for dogs
This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away.