Can dogs eat
Xylitol?
No
No. Xylitol is highly toxic to dogs: even a small amount can cause a dangerous drop in blood sugar and, in some dogs, liver failure.
Why it’s unsafe
Xylitol is a sugar-free sweetener, not a food, and it is the reason this page exists: it turns up in places most owners never think to check. In dogs, xylitol is absorbed quickly and can trigger a strong release of insulin from the pancreas. That pulls blood sugar down fast, a drop called hypoglycemia. The FDA says it can begin within 10 to 60 minutes of eating xylitol.
Larger amounts can also damage the liver. Pet Poison Helpline says liver-related signs such as jaundice or clotting problems may start 24 to 48 hours after eating it, and the FDA notes that serious effects may not appear for up to 12 to 24 hours. Pet Poison Helpline also warns that even one piece of gum could be harmful, depending on the xylitol content and the size of the dog.
Xylitol is found in sugar-free gum, mints, candy, baked goods, some peanut and other nut butters, chewable vitamins and supplements, certain medicines, cough syrup, toothpaste, mouthwash, and sugar-free desserts. The FDA notes it may also be sold as birch sugar or wood sugar. Always read the ingredient label before sharing anything labeled sugar-free.
Risks
- Strong insulin release leading to low blood sugar (vomiting, weakness, lack of coordination, seizures)
- Liver injury or liver failure, with signs sometimes appearing 24 to 48 hours after eating it
- Hidden in many products, including some peanut butters, gum, mints, chewable supplements and medicines
- Even a small amount can be dangerous, depending on the product and the dog's size
What to give instead
Never serve xylitol or any product that contains it. Check the ingredient list of every peanut butter, treat, supplement or sugar-free item before it goes anywhere near your dog, and keep gum, mints and handbags out of reach.
If you want to share a sweet-tasting treat, offer a few pieces of dog-safe fruit such as blueberries or watermelon (seedless, rind removed). If you use peanut butter for lick mats or to hide pills, the FDA advises checking the label first to make sure it does not contain xylitol, and recheck each time because recipes change.
Related forms
| Food | Verdict | Why |
|---|---|---|
| Sugar-free gum and mints | No | A common source of xylitol poisoning; check the label for xylitol. |
| Peanut and nut butters | With caution | Some brands contain xylitol, so read the label every time; plain versions without it are a different matter. |
| Birch sugar | No | The FDA lists birch sugar and wood sugar as other names for xylitol. |
| Other sugar alcohols | With caution | Pet Poison Helpline says others, such as sorbitol, do not have the same concerns, but they offer dogs nothing; always check the label for xylitol alongside them. |
If your dog already ate it
Treat any suspected xylitol exposure as an emergency, even if your dog seems fine. Signs of low blood sugar can include vomiting, lethargy, weakness, loss of coordination, tremors or seizures. Liver damage can show later, so a normal first few hours does not mean the risk has passed.
Call your vet, an emergency clinic, ASPCA Animal Poison Control at (888) 426-4435 or Pet Poison Helpline at (855) 764-7661 (US; fees may apply) straight away. Outside the US, contact your local emergency vet. Have the product packaging to hand so you can read out the ingredients and the amount missing.
Do not try to make your dog vomit at home, and do not give any remedies or medication unless a veterinarian tells you to. Treatment is decided by your vet and often involves monitoring blood sugar and liver values.
Frequently asked questions
Is xylitol the same as birch sugar?
Yes. The FDA says xylitol may be sold under the names birch sugar or wood sugar. Treat any product listing them as containing xylitol.
Which products commonly contain xylitol?
Sugar-free gum, mints, candy, some peanut butters, chewable vitamins, certain medicines and supplements, cough syrup, toothpaste, mouthwash and some baked goods or desserts. Check the label whenever a product is marked sugar-free.
How fast does xylitol poisoning start?
Low blood sugar can begin within 10 to 60 minutes, according to the FDA. Liver damage may take a day or longer to appear, so call a vet immediately rather than waiting for signs.
Is xylitol toxic to cats too?
Pet Poison Helpline says cats are not expected to have the same concerns as dogs and there are no reported cases in cats to date, and the Merck Veterinary Manual describes dogs as the only domestic species with reported xylitol toxicosis. Keep it away from all pets regardless, and ask your vet if a pet is exposed.
Is xylitol toothpaste safe if my dog licks some?
Toothpaste made for people is not made for dogs, and the FDA lists toothpaste among products that can contain xylitol. Use a toothpaste made for dogs instead, as covered in our guide to brushing your dog's teeth.
Written from veterinary sources by the Pawsplained editorial team. Not yet reviewed by a veterinarian; this is general information, not a diagnosis or treatment plan. Updated Oct 25, 2026. Editorial policy