TOXIC FOOD FOR PETS
Most Common

 Chocolate
(contains theobromine, similar to caffeine, and causes heart arrhythmias and/or death)

Macadamia nuts
(causes severe rear leg weakness and temporary paralysis)

Grapes/Raisins

 Baby Food
(contains onion and garlic)

Alcohol

Almonds

Caffeine
(coffee grounds - often used in gardens - beans and tea)

Raw Cloves of Garlic
Even though garlic contains thiosulphate like the onion, it appears that it's much less toxic & large amounts would need to be eaten to cause illness.

Mushrooms

Onions
(raw, cooked and dehydrated: destroys red blood cells and can cause anemia)

Tobacco
 

- United Animal Rescuers