Good for you Alona posting this !!
Grapes are a no no for yorkies...Here's a site where you can read about toxic foods
http://www.peteducation.com/category...cls=2&cat=1939
when I met my husband he was giving his cockers grapes till I researched it on the net and made him stop....there's so many good things they can eat rather than take a chance with something toxic to their systems
this is the main page....
Foods Which are Toxic:
Common food items can be poisonous to dogs and puppies, sometimes in very small amounts. Food items, especially those listed below, should not be given to dogs, and should be stored out of their reach. Care should be taken while preparing and serving foods to assure a dog will not be tempted to "taste test" them.
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Chocolate and Caffeine
Foods to Avoid
Garbage Intoxication/Food Poisoning
Grapes/Raisins
Macadamia Nuts
Mushroom
Onion and Garlic