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Dog Onion Toxicity Calculator
Assess onion/garlic toxicity risk for dogs
Reference: Toxic signs generally appear when a dog consumes 15 to 30 grams of onion per kilogram of their body weight. All forms (raw, cooked, dehydrated, powder) are toxic.
Dog Weight
Onion / Garlic Exposure
Assessment Results
⚠️ Onions, garlic, chives, and leeks contain N-propyl disulfide, which destroys red blood cells and causes hemolytic anemia in dogs. Symptoms (lethargy, pale gums, elevated heart rate) may take several days to appear. If a toxic dose was consumed, contact a veterinarian immediately.