Dog Xylitol (Birch Sugar) Toxicity Calculator
Assess the life-threatening risk of Xylitol (Birch Sugar / E967) ingestion in dogs, causing severe hypoglycemia and acute liver necrosis.
Xylitol (Birch Sugar) Toxicity Estimator
How to Use the Dog Xylitol (Birch Sugar) Toxicity Calculator
- Enter dog weight in lbs or kg.
- Select product type (Sugar-Free Gum piece, Sugar-Free Peanut Butter, Toothpaste, Pure Xylitol Powder).
- Enter number of pieces or grams ingested.
- View immediate risk level: Hypoglycemia risk threshold (>0.1 g/kg) or Hepatic Liver Failure risk (>0.5 g/kg).
Clinical Methodology & Formula Breakdown
Xylitol causes rapid insulin release in dogs (up to 6x higher than glucose). Dose > 0.1 g/kg causes severe hypoglycemia; > 0.5 g/kg causes acute liver necrosis.
- FDA Veterinary Advisory on Xylitol
- ASPCA Animal Poison Control Center
Worked Clinical Example
Xylitol Toxicity Dosage Thresholds
| Ingested Dose (g/kg) | Clinical Consequence | Veterinary Action Required |
|---|---|---|
| < 0.05 g/kg | Low risk of clinical hypoglycemia | Monitor blood sugar at home |
| 0.10 - 0.49 g/kg | Severe Hypoglycemia (Involuntary Insulin Spike) | Emergency IV Dextrose administration |
| >= 0.50 g/kg | Acute Hepatic Liver Necrosis & Failure | ICU Hospitalization, liver protectants, plasma |
Frequently Asked Questions
What products contain hidden Xylitol?
Sugar-free chewing gum, candy, peanut butter, specialty ice creams, keto baked goods, mouthwash, toothpaste, nasal sprays, and chewable vitamins. It may be listed as "Birch Sugar" or "E967".
How fast does Xylitol affect a dog?
Hypoglycemia can develop in as little as 15 to 30 minutes after ingestion.
What are the symptoms of Xylitol poisoning?
Vomiting, weakness, loss of coordination (ataxia), collapse, seizures, coma, and jaundice (if liver necrosis occurs).
Why doesn't Xylitol harm humans like it harms dogs?
In humans, Xylitol does not stimulate insulin release. In dogs, Xylitol causes a massive, rapid release of insulin from the pancreas.
Is Xylitol fatal for dogs?
Yes, untreated Xylitol toxicity is frequently fatal. Immediate emergency veterinary care dramatically improves survival.