If your pet should ingest any of the following, take him to the vet immediately, never try to induce vomiting without consulting a veterinarian first.
In any amount (no matter how small), antifreeze is toxic after 6 to 8 hours of ingestion without treatment.
Milk chocolate is the least toxic kind, but no amount of theobromine that chocolate contains is really safe.
This is an artificial sweetener found in most “sugar-free” products, such as gums, sweets and candies.
It doesn’t matter if the onions are raw, cooked or dehydrated, but it tends to take a large dose to be toxic.
GRAPES and RAISINS
No one is quite sure why they’re toxic, but large doses of either does damage to the kidneys. To be on the safe side, it’s best to avoid any baked goods that contain raisins.