3. Coffee
Alcohol, chocolate and coffee are some of the foods that contain methylxanthines. This chemical element is very toxic for dogs. Another minus is that coffee may disturb your dog’s sleeping patterns. Pay attention that sodas also have methylxanthines. Avoid giving your pet beverages that contain caffeine.

4. Grapes
Be careful and never give grapes to your dog. This delicious berry is highly toxic for dogs. It is not yet completely clear what makes grapes so harmful, but it is known that if your dog eats grapes, it may result in kidney failure and death. It may take a couple of days to see such a terrible effect so hurry up and see a vet if you think your dog may have eaten grapes.