Chocolate
π΄ Toxic, keep it away entirely
Contains theobromine and caffeine (methylxanthines) that dogs and cats clear very slowly. Darker chocolate is far more dangerous.
Watch for: Vomiting, diarrhea, restlessness, racing or abnormal heart rhythm, tremors, seizures.
Treat as urgent. Use our chocolate toxicity calculator and call your vet or a poison line. Don't wait for symptoms.
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Xylitol (birch sugar)
π΄ Toxic, keep it away entirely
In dogs, this sugar substitute (in sugar-free gum, candy, peanut butter, and baked goods) triggers a dangerous insulin release and can cause liver failure.
Watch for: Vomiting, weakness, wobbliness, collapse, seizures, often within 15β30 minutes.
Emergency. Call your vet or a poison line immediately; even a small amount can be serious.
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Grapes & raisins
π΄ Toxic, keep it away entirely
Tartaric acid in grapes and raisins can cause sudden kidney failure in dogs. There is no known safe amount.
Watch for: Vomiting, lethargy, loss of appetite, reduced or no urination over 1β3 days.
Emergency. Call your vet or a poison line right away. Early treatment matters.
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Onion, garlic, chives & leeks
π΄ Toxic, keep it away entirely
Allium vegetables (raw, cooked, or powdered) damage red blood cells and can cause anemia. Cats are especially sensitive.
Watch for: Weakness, pale gums, lethargy, dark urine, often delayed several days after eating.
Call your vet or a poison line. Watch for delayed signs; powdered forms (in dips, gravies, baby food) count too.
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Macadamia nuts
π΄ Toxic, keep it away entirely
Macadamias cause a poorly understood toxic reaction in dogs, even in small amounts.
Watch for: Weakness (especially the back legs), wobbliness, tremors, vomiting, fever, usually within 12 hours.
Call your vet or a poison line. Signs usually pass in 24β72 hours but should be checked.
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Alcohol & raw yeast dough
π΄ Toxic, keep it away entirely
Alcohol depresses the nervous system; raw yeast dough keeps rising and ferments into alcohol inside the warm stomach, and can also bloat dangerously.
Watch for: Incoordination, drowsiness, low body temperature, a swollen painful belly, vomiting, in severe cases coma.
Emergency. Call your vet or a poison line immediately.
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Coffee, tea & caffeine
π΄ Toxic, keep it away entirely
Caffeine is a methylxanthine like the theobromine in chocolate, and pets are far more sensitive to it than people.
Watch for: Hyperactivity, restlessness, racing heart, tremors, seizures.
Call your vet or a poison line. Coffee grounds and tea bags are especially concentrated.
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