According to the American Society for the Prevention of Cruelty to Animals the following foods should not be fed to your pet.
Chocolate, Coffee, Caffeine
Grapes & Raisins
Raw/Undercooked Meat, Eggs and Bones
Xylitol (an ingredient found in many products like chewing gum and toothpaste)
Onions, Garlic, Chives
Read the full ASCPA article here.
Perhaps a better, more comprehensive list of toxic foods to be avoided can be found here: www.thegoodypet.com/bad-toxic-foods-for-dogs
Also there is a excellent list that will help you determine which common plants are safe and which ones are toxic to pets. (Click here.)
Post your veterinarian's phone number and poison control contact numbers in a conspicuous location and make sure all family members can quickly locate these vital numbers.
Pet tip: try walking through your home on all fours to see from your pet's perspective and make your home pet-safe today.