How long can a healthy dog survive without food?
A dog can survive for at least five days without food but it depends on their health and physical condition before the period of starvation. It is said that they can go without food for about three or four weeks without access to food provided they have access to drinking water but it really depends on the breed of dog.
If your dog is not eating. Do not wait longer than 48 hours before calling your local Vet.