Pocket VetDog xylitol toxicity calculator
Xylitol (in sugar-free gum, candy, and baked goods) can cause dangerous low blood sugar and liver failure in dogs. Estimate the dose below — but because product concentrations vary, always confirm with a vet.
Frequently asked
How much xylitol is poisonous to dogs?
Hypoglycemia risk starts around 100 mg/kg (0.1 g/kg) and acute liver failure risk around 500 mg/kg (0.5 g/kg). Because gum and candy vary widely in xylitol content, even small amounts warrant a vet call.
How fast does xylitol affect dogs?
Blood sugar can crash within 30–60 minutes. This is time-sensitive — contact a vet immediately if your dog ate a xylitol product.
Calculations use published formulas and are informational only — not a substitute for veterinary care or a formulary. When in doubt, contact your vet.