Can dogs eat milk chocolate?

Toxic
Milk chocolate is toxic to dogs due to methylxanthines and can cause serious illness.

Quick notes

Sources

All pets (comparison)

Pet Safety Notes
Dog Toxic Milk chocolate is toxic to dogs due to methylxanthines and can cause serious illness.
Cat Toxic Toxic to cats; ingestion may cause significant neurologic and cardiac effects.
Rabbit Toxic Toxic and inappropriate for rabbits.
Parrot Toxic Toxic to parrots and should never be fed.