Are onions toxic to dogs?
Christopher Snyder
Updated on March 14, 2026
What parts of onions are toxic to dogs? All parts of the onion plant are toxic to dogs, including the flesh, leaves, juice, and processed powders. Raw or cooked, fried or powdered, onions and the rest of the allium family (garlic, shallots, leeks, and chives) are harmful to dogs.