There's no exact figure to explain that how long can a dog live without food. Many aspects are assessed to learn about the intake of foods by the canine. The consumption of the diet will depend on the age, breed and the dog's health.
More or less, it is deemed that doggy can survive without food at least for 3 to 5 days or perhaps for 7 days. There are various presumptions on this factor. Some anticipate that the doggie can survive for 30 days without proper nutrition.
This has been noticed that adult canines cannot stay for a long time devoid of food as compared to pups. The pooches that are fit physically can live with no food for a long time as compared to canines which are in weak health conditions.