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Dangerous
Onions are toxic to dogs.
All parts of the onion are toxic (flesh, leaves, juice, powder). Damages red blood cells, causing anemia. Symptoms may be delayed 3-5 days.
Dangerous
Onions are extremely toxic to cats.
Cats are even more sensitive to onion toxicity than dogs. All forms (raw, cooked, powder, dehydrated) are dangerous. Causes oxidative damage to red blood cells leading to Heinz body anemia. Seek immediate vet care.
If your dog has eaten this food and shows signs of distress (vomiting, diarrhea, lethargy, tremors, or seizures), contact your veterinarian immediately.