{"hq_id":"hq-p-pet-000069","name":"Xylitol-Containing Products and Dog Toxicity (Sugar-Free Foods, Rapid Insulin Release, Hepatic Necrosis, 0.1 g/kg Lethal Dose)","category":{"primary":"pet_care","secondary":"pet_food_hazard","tags":["xylitol","dog toxicity","sugar-free","hypoglycemia","hepatic necrosis","insulin","sugar alcohol","peanut butter"]},"product_tier":"PET","overall_risk_level":"high","description":"Xylitol is a sugar alcohol used as a sweetener in sugar-free gum, candies, peanut butter, baked goods, toothpaste, and supplements that is extremely toxic to dogs. In dogs, xylitol triggers massive pancreatic insulin release within 10-60 minutes of ingestion, causing life-threatening hypoglycemia (blood glucose <60 mg/dL) at doses as low as 0.1 g/kg body weight. At higher doses (>0.5 g/kg), xylitol causes acute hepatic necrosis through unknown mechanisms, often fatal within 24-72 hours. A single stick of sugar-free gum (0.3-0.4g xylitol) can be lethal to a 10-lb dog. ASPCA APCC handled over 6,700 xylitol dog exposures in 2020 alone. Cats lack the insulin-release pathway and are not affected.","synthesis":{"derived_risk_level":"moderate","synthesis_confidence":0.82,"synthesis_method":"compound_composition","context_used":"human_adult","context_source":"default","exposure_modifier":1,"vulnerability_escalated":false,"escalation_reason":null,"compounds_resolved":1,"compounds_total":1,"synthesis_date":"2026-03-27","synthesis_version":"1.0.0"},"hazard_summary":{"sensitive_populations":"all dogs (species-specific toxicity), small dogs especially vulnerable due to dose-weight ratio","overall_risk":"high","primary_concerns":["Lethal dose as low as 0.1 g/kg — a single stick of gum can kill a small dog","Rapid insulin release causes life-threatening hypoglycemia within 10-60 minutes","Higher doses cause acute hepatic necrosis with high mortality rate","Xylitol is increasingly common in sugar-free products, including some peanut butters marketed for pet use"],"exposure_routes":"Ingestion (sole route — accidental consumption of xylitol-containing human foods, gum, toothpaste, supplements)."},"exposure":{"routes":["ingestion"],"contact_types":["ingestion_direct"],"users":["pet_dog"],"duration":"acute","frequency":"accidental","scenarios":["Dog ingests sugar-free gum dropped on floor (0.3-0.4g xylitol per stick — lethal for small dogs)","Dog eats xylitol-containing peanut butter (some brands contain 1-2g per tablespoon)","Dog accesses sugar-free candy, mints, or baked goods containing xylitol","Dog chews xylitol-sweetened toothpaste tube"],"notes":"Xylitol dog toxicity: unique insulin-releasing effect mediated by rapid absorption and dose-dependent pancreatic beta-cell stimulation. Dogs are 100x more sensitive to xylitol-induced insulin release than humans. Hypoglycemic dose: 0.1 g/kg body weight (onset 10-60 min). Hepatotoxic dose: >0.5 g/kg (acute hepatic necrosis, coagulopathy, death within 24-72 hrs). Cats: NOT affected (different insulin response). ASPCA APCC: xylitol is in top 10 dog toxin calls annually. Products with xylitol: gum, candy, toothpaste, some peanut butters, baked goods, nasal sprays, medications."},"consumer_guidance":{"usage_warning":"Dog owners must check ingredient labels for xylitol (also listed as 'birch sugar' or E967) in ALL sugar-free products before allowing any access to dogs. Keep gum, candy, baked goods, and toothpaste completely inaccessible to dogs. If a dog ingests any xylitol-containing product, seek emergency veterinary care IMMEDIATELY — do not wait for symptoms. Time to treatment is critical.","safer_alternatives":["Erythritol as sugar substitute (not toxic to dogs at dietary levels)","Stevia-sweetened products (non-toxic to dogs)","Dog-specific peanut butter brands that guarantee xylitol-free formulation","Keep all human sugar-free products in dog-proof containers"]},"regulatory":{"applicable_regulations":[{"jurisdiction":"USA","regulation":"FDA GRAS Status for Xylitol in Human Foods (No Pet-Specific Regulation)","citation":"21 CFR 172.395; FDA Generally Recognized as Safe (GRAS) determination","requirements":"Xylitol is FDA GRAS for human food use. No federal requirement to label pet toxicity warnings on xylitol-containing products. Some states have proposed legislation requiring warning labels. AAFCO does not regulate xylitol content in pet foods. Veterinary community advocates for mandatory 'Toxic to Dogs' labeling.","compliance_status":null,"effective_date":null,"enforcing_agency":"FDA Center for Food Safety","penalties":null,"source_ref":null}],"certifications":[],"labeling":{"required_disclosures":[],"prop65_warning":{"required":null,"chemicals":[],"endpoint":null,"notes":null},"ghs_labeling":{"required":null,"signal_word":null,"pictograms":[],"hazard_statements":[],"notes":null},"hidden_ingredients":{"trade_secret_protected":null,"categories_hidden":[],"estimated_count":null,"known_concerns":null,"notes":null},"notes":null},"recalls":[],"regulatory_gap":null,"notes":null},"lifecycle":{"recyclable":false,"disposal_guidance":"Dispose of xylitol-containing products in dog-proof sealed trash. No environmental hazard.","hazardous_waste":false,"expected_lifespan":"Shelf life of containing product"},"formulation":{"form":"varies","key_ingredients":[],"certifications":[]},"materials":{"common":[],"concerning":[],"preferred":[]},"compound_composition":[{"hq_id":"hq-c-org-000074","compound_name":null,"role":"toxic_ingredient","typical_concentration":"0.1 g/kg lethal in dogs; single gum stick contains 0.3-0.4g; FDA GRAS for humans"}],"identifiers":{"common_names":["xylitol-containing products and dog toxicity (sugar-free foods, rapid insulin release, hepatic necrosis, 0.1 g/kg lethal dose)"],"aliases":[],"manufacturer":null,"brands":[]},"brand_examples":[],"sources":[{"type":"expert_curation","name":"ALETHEIA Safety Database","date":"2026-03-26"}],"meta":{"schema_version":"4.0.0","last_updated":"2026-03-26","timestamp":"2026-05-02T18:29:17.030Z"}}