Xylitol Poisoning in Dogs: Hidden Danger in Sugar-Free Products
⚠ Toxicity Profile
| Scientific Name | Xylitol (Sugar Alcohol, E967) |
|---|---|
| Toxic Principles | Xylitol (Rapid Insulin Release Trigger) |
| Danger Level | Extreme (Emergency — Fast Onset) |
| Toxic Dose Limit | 75 mg/kg |
| Target Organ | Liver (Acute Hepatic Necrosis), Pancreas |
Xylitol is one of the most dangerous and fastest-acting pet toxins. In dogs, xylitol triggers a massive, dose-dependent insulin release within 15-30 minutes of ingestion — up to 6x the normal insulin response to glucose. This causes life-threatening hypoglycemia (blood sugar crash) with rapid onset. At higher doses, xylitol causes acute hepatic necrosis (liver cell death) through mechanisms that are not yet fully understood.
Where Xylitol Hides
- Sugar-free chewing gum (the most common source — some brands contain 0.3-1.0g xylitol per piece)
- Sugar-free peanut butter (increasingly common — always check labels!)
- Sugar-free mints, candies, and breath strips
- Toothpaste and oral care products
- Some 'keto-friendly' and 'low-carb' baked goods
- Nasal sprays and some liquid medications
Dose Thresholds
Hypoglycemia: > 75 mg/kg (as little as 1-2 pieces of gum for a small dog). Onset: 15-60 minutes. Hepatic Necrosis: > 500 mg/kg. Onset: 9-72 hours. A 5 kg Chihuahua eating just 1 piece of xylitol gum (~1g xylitol) ingests 200 mg/kg — exceeding the hypoglycemia threshold by nearly 3x.
🔬 Pet Toxicity Risk Evaluator
Enter your pet's weight and the estimated amount consumed to assess toxicity risk — calculated locally in your browser.
🚨 If Your Pet Has Been Exposed
DO NOT WAIT for symptoms to appear. Contact your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435 immediately. Have your pet's weight, the substance involved, estimated amount consumed, and time of ingestion ready. The risk calculator above is an educational estimate only — individual animal responses vary based on age, breed, pre-existing conditions, and concurrent substance ingestion.