Feel free to PM me with more foods and I will add them to the list.
Un-Safe Foods for Dogs
-Chocolate
-Onions
-Garlic
-Meat Bones
-Raw Meat
-Raw Poultry
-Citrus Oil Extracts
-Fat Trimmings and Fatty Foods
-Grapes and Raisins
-Large amounts of Liver
-Macadamia Nuts
-Alcoholic Beverages
-Mushrooms
-Pits from peaches and plums
-Potato, rhubarb, and tomato leaves
-Potato and tomato stems
-Raw eggs
-Raw fish
-Salt (in large quantities)
-Sugary foods
-Yeast Dough (expands in digestive system)
-String (can get caught in digestive system)
(Thanks to [Eric] for these additions)
-Avocadoes
-Coffee
-Moldy/Spoiled foods
-Gums, candies, and other foods sweetened with xylitol
-Tea leaves