Can dogs eat xylitol?
If your dog has just eaten xylitol
Do this now
- This is a medical emergency — call your vet immediately, even if only a small amount was eaten and your dog seems fine
- If your vet is closed, call the ASPCA Animal Poison Control Center on (888) 426-4435 or the nearest 24/7 emergency vet
- Bring the packaging with you — the vet needs to know exact xylitol content
- Do NOT induce vomiting yourself unless instructed — hypoglycemia can crash fast and vomiting makes it worse
- Do not give sugar or honey at home unless your vet specifically tells you to
- Get to a vet within 30 minutes if at all possible
What your vet will want to know
Have this information ready when you call:
- Exact product name and brand
- Whether xylitol is confirmed in the ingredients (or 'birch sugar')
- Amount eaten (count pieces of gum, weigh peanut butter, etc.)
- Xylitol content if listed on packaging
- Time of ingestion
- Your dog's weight
- Any symptoms already appearing
The full picture
Xylitol is an artificial sweetener that's among the most dangerous substances a dog can ingest. In humans it has no effect on insulin; in dogs, it triggers a massive insulin release, causing blood sugar to crash within 15–60 minutes of ingestion (hypoglycemia). Higher doses damage the liver. It's now in far more everyday products than most owners realize: sugar-free chewing gum, many 'low-sugar' peanut butters, mints, some baked goods, sugar-free candy, some medicines, toothpaste, mouthwash, and increasingly in 'healthy' snack bars and low-sugar yogurts. Xylitol is sometimes listed as 'birch sugar' on ingredient labels — a name dog owners should memorize. As little as 0.1 g per kg of body weight causes hypoglycemia; 0.5 g per kg can cause liver failure. A single piece of xylitol-sweetened gum can contain 0.3–1 g of xylitol — potentially lethal to a small dog.
Only your vet should make this call. If you can't reach them, our 4-gate safety checker walks through when hydrogen peroxide is appropriate (and when it's dangerous — sharp objects, caustics, certain breeds, and more).
Check if vomiting is safe →Risks to watch for
- Rapid, severe hypoglycemia (low blood sugar) within 15–60 minutes
- Vomiting (often the first sign)
- Weakness, staggering, collapse
- Seizures
- Liver failure at higher doses (may appear 12–72 hours after ingestion)
- Death if untreated
Symptom timeline
Symptoms typically progress in stages. Knowing what to expect helps you act fast:
- 15–60 minutes Vomiting, often the first visible sign
- 30 minutes – 2 hours Hypoglycemia — weakness, wobbling, collapse, seizures
- 12–72 hours Liver damage at higher doses — jaundice, ongoing vomiting, lethargy
Breed-specific warnings
- Small breeds reach toxic doses on very small amounts — a single stick of sugar-free gum can cause hypoglycemia in a 10 lb dog.
- Flat-faced breeds: never induce vomiting at home.
Safe portion size
None — zero. There is no safe amount.
Safer alternatives
- Dog-safe peanut butter (xylitol-free, check label)
- Blueberries
- Plain cooked chicken pieces for training
Common questions
My peanut butter says 'no added sugar' — is it safe?
Not automatically. 'No added sugar' peanut butters sometimes use xylitol as a sweetener. Always check the ingredients. The safest peanut butters list only 'peanuts' or 'peanuts and salt'.
My dog licked my toothpaste — is that a problem?
A single lick probably isn't enough to cause serious harm in most dogs, but xylitol content varies between brands. Check the tube. If in doubt, call your vet, especially for smaller dogs.
What's 'birch sugar'? Is it the same thing?
Yes. 'Birch sugar' is a marketing-friendly name for xylitol. Products often use this name on front-of-pack claims while still listing xylitol in the full ingredients. Treat them as the same thing.
How much xylitol is dangerous?
Roughly 0.1 g per kg of body weight causes hypoglycemia, and 0.5 g per kg can cause liver failure. For context, a single piece of sugar-free gum can contain 0.3–1 g of xylitol. Small dogs are at risk from very small amounts.
My dog seems fine hours after eating xylitol — are they OK?
Possibly, but liver damage can appear 12–72 hours later even if the initial hypoglycemia was mild or avoided. If there's any chance they ate a meaningful amount, your vet may recommend monitoring bloodwork.
Is stevia or aspartame also dangerous?
No. Stevia, aspartame, sucralose, erythritol, and monk fruit are not toxic to dogs the way xylitol is. Xylitol is uniquely dangerous. That said, sugar-free products can still cause graham cracker upset and aren't 'dog treats.'
How little xylitol is dangerous
A 10-pound Yorkshire Terrier chews through one piece of sugar-free gum containing 1 g of xylitol. That's about 0.22 g xylitol per kg — more than double the 0.1 g/kg threshold that causes dangerous hypoglycemia. Symptoms can start within 15 minutes.
Check ingredient lists carefully: xylitol is sometimes listed as 'birch sugar,' 'sugar alcohol,' or just under 'natural sweetener.' Some peanut butter brands, mints, baked goods, and children's chewable vitamins now contain it. When in doubt, call the vet — there's no way to safely wait on xylitol.
This scenario illustrates typical veterinary outcomes; individual dogs vary in sensitivity. If your dog has eaten xylitol, always call a vet or the ASPCA on (888) 426-4435 rather than relying on example scenarios.
Unexpected vet bills can run into thousands
One emergency visit for food poisoning can cost $500–$10,000+. Compare US pet insurance in 60 seconds.
Learn about vet costs & insurance →Sources
The information on this page is compiled and cross-checked against these authoritative US veterinary and toxicology sources:
- ASPCA Animal Poison Control Center — 24/7 poison hotline and comprehensive toxic food database
- Pet Poison Helpline — veterinary toxicology service
- Merck Veterinary Manual — peer-reviewed clinical reference
- American Veterinary Medical Association (AVMA)
- American Kennel Club Expert Advice
- Cornell University College of Veterinary Medicine
Specific toxicity thresholds cited on this page come from the above sources; where they disagree, we cite the more conservative figure. Numbers are general guidance — individual dogs vary in sensitivity based on age, breed, medications, and health conditions. When in doubt, always call your vet.
Checked against US veterinary guidance — see our editorial standards and source list. If your dog has eaten something and you need urgent advice, call a vet or the ASPCA Animal Poison Control Center on (888) 426-4435.