What foods are toxic to dogs?

[jenny84]

My 12 year old lab eats just about anything. She has an apple and carrot a day as well as other veggies like brocolli and tomatoes. She's recently been diagnosed with cancer of the liver due to the medication she's been having for arthritis and hip dysplasia and I've been researching what best diet she should be on.

Can anyone tell me what foods are toxic to dogs? I've always known that chocolate, onions and garlic are but I read somewhere recently that grapes are toxic too which she eats quite regularly. Anyone know whether this is true and what it does to them? Thanks
Rebecca... Thanks! How awfully bloody kind of you to say I've been killing my dog! I know us humans have a tendency to think we own the world but since when has fruit and veg been 'human' food?? It's not like I've fed her chocolate, pies and chicken kievs her whole life. She eats dog food, fruit and veg and occasionally she may have found something nasty in the park she's gobbled up before we could stop her.
She has liver cancer because she's been on medication called Rymadil for over 2 years to help with her hip dysplasia which is hereditary and arthritis which was caused by the added weight on her front legs from the hip dysplasia. None of these things have been our families faulth and she is otherwise a healthy and extremely happy dog. Thanks to all the other answers which weren't so self righteous and condescending.