I’ve heard grapes are poisonous to dogs. Are there any other things humans can eat that dogs can’t?

There are several things humans can eat that dogs can’t. Examples are: certain types of painkillers, garlic, onion, grapes, raisins, chocolate and xylitol (found in sugar free gum and other sweets). These products are normally found in the home and small amounts ingested can have deadly outcomes in dogs; they are however not the only things poisonous to dogs.